Service Agreement of Protenix Web Server

Last Revised Date: 10/9/2025
Effective Date: 10/9/2025

Welcome to use Protenix Web Server and relevant products and services!
Protenix Web Server (hereinafter referred to as the "Services" or the "Software") is an Internet website software lawfully owned and operated by Beijing Zitiao Network Technology Co., Ltd. and/or its Affiliates ("Company", "we"). Service Agreement of Protenix Web Server (hereinafter referred to as the "Agreement") constitutes a valid contract between you and us regarding this Service.

In order to allow us to provide better Services to you, please read and ensure that you can fully understand this Agreement before using this Service, especially for the provisions that exempt or limit our liabilities, provisions that restrict your rights, and the provisions that prescribe the applicable laws and dispute resolution. Among others, the important contents such as the provisions that exempt or limit the liabilities will appear in the bold type for your attention, and please pay attention when you read them. If you are under the age of 18, please carefully read and ensure that you can fully understand this Agreement when you are accompanied by your legal guardian, and you can only download, use this Software and enable the relevant functions of the products after obtaining the consent of your legal guardian. If you do not agree to this Agreement, we will not be able to provide relevant functions of the products completely, this Software, and Services, and you can immediately stop using the same. If you use this Software and relevant functions of the products, it will be deemed that you have fully understood this Agreement and agreed to be bound by this Agreement and relevant rules (including but not limited to our Privacy Policy) as a party to this Agreement.

The operator of this Service may change due to business adjustments. The change of operator will not affect your rights and interests under this Agreement. Your acknowledgement and agreement to accept the relevant Services will be deemed as the acceptance of relevant rights and obligations and agreement to be bound by this Agreement.

1. Scope of the Agreement and Definitions

This Agreement includes relevant agreements, policies, rules, and other contents related the Software that the Company has already released or may be released from time to time in the future. The above contents constitute an integral part of this Agreement once such contents are officially announced and delivered to users in an appropriate manner (website announcement, system notification, etc.), and you shall abide by it. If you do not accept the updated contents, you shall immediately stop using this Software and relevant functions of the product. Your continuous use of this Software and relevant functions of the products will be deemed as the acceptance of the updated contents.

2. Introduction of Services

2.1 Protenix Web Server will provide users with online protein structure prediction reasoning and online protein designing services.The functions and services provided by the Software may be optimized or modified according to changes in user requests, different service versions, or the unilateral judgment of the service provider, or suspended due to regular or irregular maintenance. Unless you fully accept the entire content of this agreement, you will not be able to register, log in, and use the Software and services normally. You understand and agree that if you continue to register, log in, and use the Software and services, your actions will be deemed to have fully understood this agreement and undertake to accept this agreement and other related software and services as a party to this agreement, bound by the relevant agreements and rules.

2.2 User(hereinafter referred to as "User" or "You") shall obtain the Software and services in accordance with our designated methods and channels, and have management rights over the account.

2.3 Protenix Web Server will endeavor to provide unimpeded online services, but the network access service of the platform may be affected by various factors, and the link may be blocked, restricted, or terminated. We will not be liable for any of the liabilities.

2.4 Protenix Web Server only provides online products and services. You understand that you should, at your own expenses, equip yourself with the relevant terminal device (such as the smart TV and other devices relevant to the connection with the Internet or mobile network) for using this Software and purchase relevant terminal device from a third party subject to your compliant with the separate agreement between such a third party and you. You will be deemed to have used this Software once you open Protenix Web Server or enable related functions and services from the terminal device. You may need to connect the terminal device to the Internet in order to fully realize the features and services of Protenix Web Server. You understand and confirm that you shall bear the related expenses incurred therefrom (such as telephone charges and network access fees for Internet connection and mobile phone bills and data charges paid for mobile networks, etc.).

2.5 In order to allow us to improve users experience and services, we will provide software update or alterations from time to time (including but not limited to software modification, upgrade, function enhancement, new services development, and software replacement, etc.). To ensure the security of our functions and services, and improve user experience, the Company will, if possible, remind users by means including but not limited to system notifications, announcements, website internal message after updating this Software and relevant functions of the products or any part thereof. Users shall have the right to choose whether to accept the updated version or services. If you do not accept the updates, the functions and services of Protenix Web Server, in whole or in part, may be restricted or can not work properly.

2.6 You understand and acknowledge that the Company may send or convey information to you through this Software or via email.

2.7 The Company reserves the right to update, upgrade, modify and transfer the Software and services or any part thereof and related functions, application software at its sole discretion at any time. You agree that the Company does not need to notify you of the above actions and does not assume any responsibility to you or any third party.

3. License

3.1. The Company grants the User a non-transferable, non-exclusive license to use the Software and Services.

3.2. This product, including code and model parameters , is made available under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License. You can find details at: https://creativecommons.org/licenses/by-sa/4.0/

3.3. All other rights not expressly authorized by this article and other terms of this agreement remain reserved by the Company, and users must obtain additional written permission from the Company when exercising these rights. The failure of the Company to exercise any of the foregoing rights does not constitute a waiver of such rights.

4. Software Acquisition

4.1. Users can obtain the Software and Services directly through https://protenix-server.com/.

4.2. If you obtain the Software and Services from a third party not authorized by the Company, the Company can not guarantee that the Software can be used normally, and is not responsible for the losses caused to users.

5. Account

5.1. You should confirm that when you complete the relevant login process in accordance with the Company's designated channels and methods, you should be a natural person, legal person or other organization with full capacity for civil rights and capacity commensurate with the civil acts you are engaged in. If you do not have the aforementioned subject qualifications, please do not use this Software and Services; otherwise, you and your guardian shall bear all the consequences arising therefrom, and the Company has the right to cancel your account without being legally liable to the user of the account. You shall be responsible for all losses such as emptying and loss of data and information arising from your use of this Software and Services.

5.2. You understand and agree that the ownership and related rights and interests of this Software account belong to the Company, and you only have the right to use the account after completing the first login. Your account is limited to your own use, and it is prohibited to give, borrow, rent, transfer, sell or otherwise license others to use the account in any form without the written consent of the Company. If the Company finds out or has reasonable reasons to believe that the user is not the initial registrant of the account, the Company has the right to suspend or terminate the provision of services to the account and/or cancel the account without notifying you. The user of the account bears legal responsibility.

5.3. You are responsible for maintaining the security and confidentiality of your personal account. The theft or loss of your account due to your own reasons or other factors beyond your control is your responsibility, and the Company does not assume any responsibility.

6. Personal Information Protection

6.1 The Company and users are committed to protect the personal information (the information that can be used independently or in combination with other information to identify the user’s identity). Personal information protection is one of the fundamental principles of the Company.

6.2 The Company will protect your personal information in accordance with the requirements of applicable laws and regulations by using security technologies and other security measures which match the functions of this Software and related products and establishing a sound management system.

6.3 You understand and agree that for reasons of security and identification (such as account and password recovery and appeal services, etc.), you may not be able to modify the registration information you provided for initial registration and verification.

6.4 We will not share, transfer, or disclose your personal information to any third parties without your permission, except under the following circumstances:

(1) when we have your explicit prior authorization and consent;

(2) when you share, transfer, or disclose your personal information to the third parties by yourself;

(3) when it is directly related to national security, national defense security, public safety, public health, or public interests;

(4) when it is necessary to protect your or others’ life, property or other material legitimate rights and interests, but the consent of which is it is difficult to obtain from the subject;

(5) when it is necessary for the conclusion and performance of the agreements or other written documents between us;

(6) when it is necessary to maintain safe and stable operation of the products and/or services we provide, such as discovering and dealing with malfunctions of the products or services;

(7) when the disclosure and provision of your personal information is made according to the applicable laws and regulations, legal procedures, mandatory administrative and judicial requirements, or directly related to criminal investigation, prosecution, trial and execution of judgments, etc. We will disclose your personal information to the public to the extent and in a manner according to the foregoing requirements. When we receive the above request of information disclosure, we will request the issuance of corresponding legal documents such as subpoenas or letters of investigation, under the premise of laws and regulations. We will cautiously examine all requests to ensure that they have a lawful basis and that they only request data which can be lawfully acquired only for the purpose of certain investigation conducted by administrative and judicial departments;

(8) to the extent permitted by laws and regulations, when it is necessary to protect your or others’ life, property, or other material legitimate rights and interests, but the consent of which is it is difficult to obtain from the subject; or when it is necessary to maintain safe and stable operation of products or services, such as discovering, preventing, dealing with fraud or other illegal activities and reduce credibility risks. Nevertheless, this provision does not allow the disclosure or provision of personal information to the public that breaches the commitments made in this Service Agreement or privacy policy;

(9) when the Company files lawsuits or arbitrations against users in order to protect its legitimate rights and interests;

(10) in the event of the mergers, divisions, acquisitions, assets transfers and other similar transactions, if it involves personal information transfer, the Company will require the new companies or organizations who hold your personal information continue to be bound by the privacy policy. Otherwise, the Company is entitled to request such companies or organizations to re-obtain your consent;

(11) when we collect your personal information from lawfully and publicly disclosed information, such as lawful news reports, government information disclosure, and other channels;

(12) when it is required for academic research purposes, or for academic research institutions to conduct statistical or academic research for public interests, and when providing academic research or descriptions to external parties, such personal information contained in the results is de-identified;

(13) other circumstances stipulated by laws and regulations.

6.5 The Company warrants not to collect or use your material information such as various property accounts, bank cards, credit cards, third-party payment accounts and corresponding passwords without your explicit authorization and consent during your use of this Software and related Company’s product functions. You understand and agree that you shall be responsible for the disclosure of the above material information and all losses incurred therefrom due to your own reasons.

6.6 For more user’s personal information protection details, please refer to Protenix Privacy Policy.

7. User’s Code of Conduct

7.1 User’s Code of Conducts

You shall be responsible for your use of this Software and relevant products of the Company. When using this Software and Company’s related products, you are prohibited from doing any of the following unless permitted by laws or the Company's prior written permission:

7.1.1 Using any plug-ins, hack tools, systems or third-party tools that are not authorized or licensed by the Company to interfere, undermine, modify, or otherwise affect the normal operation of the Software and Company’s related products.

7.1.2 Conducting any activities that endanger cybersecurity by using or targeting this Software and Company’s related products, including but not limited to:

(1) illegal intrusion to others' networks, interfering with normal functions of others' networks, data theft, and other activities that endanger cybersecurity;

(2) providing programs or tools specifically designed to engage in network intrusion, interfering with normal functions and protective measures of networks, data theft, and other activities that endanger cybersecurity;

(3) providing technical support, advertising and promotion, payment and settlement or other assistances to others knowing that such person is engaged in activities endangering cybersecurity;

(4) using data or accessing servers/accounts without authorization;

(5) accessing the public computer networks or others’ computer systems without permission, and deleting, modifying or adding the information stored therein;

(6) attempting to detect, scan, test any weakness of Protenix Web Server system or conduct any activities that undermine cybersecurity;

(7) attempting to interfere with or disrupt the normal operation of our systems or websites, intentionally spread malicious programs or viruses, or conduct any activities that disrupt and interfere with normal network information services;

(8) forging the name of TCP/IP packet in whole or in part.

7.1.3 Reverse engineering, disassembling, compiling, or otherwise attempting to discover the source code of the Software and the Company's products.

7.1.4 Maliciously registering the accounts of this Software, including but not limited to frequent and batch registration of accounts.

7.1.5 Violating laws, regulations, this Agreement, or relevant rules of the Company, or conducting any activities that infringe the legitimate rights and interests of others.

In any case, if the Company reasonably believes that any of your actions violate or may violate any of the foregoing, the Company shall have the sole discretion to judge and handle it, and the Company is entitled to stop providing users the Software services or the corresponding functions of the products with prior notice to users and hold the user liable.

7.1.6 Using the Services to generate harmful, dangerous, or otherwise unsafe content, including but not limited to (1) structure predictions generated from our online protein structure prediction service, (2) the generated protein designs through our online protein designing services (hereinafter referred to as the "Designed Proteins"), and (3) any other data or results generated from the Services (hereinafter collectively referred to as the "Output") that may pose risks to human health, the ecological environment, public safety, or biological security. This also includes using the Output for harmful or dangerous purposes, such as developing hazardous biological products or conducting unauthorized high-risk experiments.

7.1.7 Using any Output (in whole or in part) from the functions and services provided by the Software(including Generated Output) to develop a similar or competing product or service,directly or indirectly.

7.1.8 Using any Output (in whole or in part) from the functions and services provided by the Software(including Generated Output) to create or improve or train any models, including but not limited to machine learning models, deep learning models, or other predictive/analytical models, for any purpose, whether commercial or non-commercial, without obtaining prior written consent from the Company.

7.2 If the user believes any content in the Software and products violate laws or regulations, breach this Agreement, or infringe the legitimate rights and interests of the users, the user can complain or report such content by sending an email to ai4s-bio-server@bytedance.com. The Company will take appropriate measures pursuant to relevant laws, regulations, and this Agreement after receiving your complaint or report.

8. Usage Specifications

8.1 You can only use this Software, Company's products, and the information contained therein for your own use. Without the written permission of the Company, you shall not use this Software or Company's products beyond the scope of authorization above, and you shall not authorize, permit, or assist any third party to do any of the following acts with respect to the information in the Software and Company’s products:

(1) editing, organizing, or compiling the information of this Software and relevant Company’s products without authorization, and display in channels other than the source page of this Software and relevant products;

(2) using any form of identification methods including but not limited to special marks, or special codes, etc. to cause adverse effects (such as leading, diverting, or hijacking the traffic or the number of reading) to the information or contents of this Software or relevant products, whether conducted by itself or by assisting any third party;

(3) other acts that illegally obtaining or using the information of the Software and relevant products.

8.2 If you cite or use the Output in any form whatsoever (including but not limited to any academic work, research publication, conference presentation, or other commercial or non-commercial public dissemination of Designed Proteins), you shall include an appropriate citation to the following source (hereinafter referred to as the "Citation Requirement") in accordance with the service that you use:

9. Minor Protection Clause

9.1 If the user is a minor under the age of 18, the user shall read this Agreement under the guardianship, guidance of the guardian, and obtain the consent of the guardian before using the Software and relevant functions of the products.

9.2 The Company attaches importance to the protection of minors' personal information. Minors should strengthen their awareness of personal protection and be cautious when filling in their personal information. Please correctly use the Software and relevant functions of the products under the guidance of the guardians.

9.3 Minor users understand that if you violate laws or regulations, or breach this Agreement, you and your guardian shall undertake all possible legal liabilities and consequences arising therefrom pursuant to the laws and regulations.

9.4 Special reminder to minor users:

9.4.1 Minor users shall use the Software and related services under the supervision and guidance of their guardians, and minor users shall learn to use the network correctly to a reasonable extent, avoid indulging in the virtual cyberspace, and develop good habits in using the Internet.

9.4.2 Minor users shall abide by the National Youth Network Civilization Convention:

(1) Do be good at learning from the Internet and do not browse malignant information;

(2) Do be honest and friendly in communication, and do not insult or defraud others;

(3) Do improve awareness of self-protection and consciousness and do not physically meet with friends met on the Internet casually;

(4) Do maintain the security of the Internet and do not jeopardize the order of the network;

(5) Do benefit the health of the body and mind and do not indulge in virtual reality.

9.5 In order to better protect the rights and interests of the minors' privacy, the Company reminds users to be cautious when uploading contents containing minor’s elements. Once uploaded and posted, the user will be deemed to have agreed that this Software and relevant services can display the information, portrait, voice, etc. of such a minor and have allowed the Company to use and process the contents of such a minor according to this Agreement.

9.6 Special reminder to the guardians If your ward uses this Software and relevant services, as the guardian, you shall guide and supervise the ward for his/her registration and use. If your ward applies for the registration of a Protenix Web Server account, the Company shall have the right to deem that your consent has been obtained.

10. Intellectual Property Rights

10.1 Unless otherwise provided in this Agreement, the Company and/or its Affiliates own all the intellectual property rights to any and all contents, software, and products (including the products themselves and the relevant systems which support the functioning of the products such as the operating systems and voice operating system) provided by the Company or generated by this Software and related products during the operation of this Software and relevant products (including but not limited to software, technology, programs, web pages, texts, pictures, images, audio, video, graphics, layout, electronic documents, etc.) No one is allowed to use the foregoing without the authorization of the Company, which includes but is not limited to monitoring, copying, disseminating, displaying, mirroring, uploading and downloading of Protenix Web Server and relevant contents of the products through any robot, spider, or other programs or devices).

Subject to your compliance with this Agreement (including the Citation Requirement) and applicable laws, as between you and the Company, the Company will not assert ownership of intellectual property rights in the Designed Proteins. You acknowledge and agree that: (i) the Company may generate identical or similar results for other users; (ii) the Company does not represent or warrant that any Designed Proteins will be unique, novel, non-infringing, or eligible for intellectual property protection; and (iii) you waive any claims against the Company relating to the similarity of Designed Proteins generated for other users. Notwithstanding the foregoing, the Company retains an irrevocable, worldwide, non-exclusive, royalty-free, transferable, sub-licensable, and perpetual license to use the results for the purposes of analyzing, optimizing, and improving its models, algorithms, and service functions.

10.2 The User shall ensure that the Company's information (including technology, technical process, data, customer information, trade secrets or technical know-how: including relevant research, products, services, business, suppliers, customer, market, software, development, invention, program, design, drawings, engineering, marketing or financial information, hereinafter referred to as "confidential information") obtained when using the Software and services and related services will not be disclosed, published, transferred, displayed, provided, used, retained or otherwise used for any purpose other than the user's use of the Software and services. Unless expressly permitted by the Company or the relevant information has been disclosed, the user shall keep the confidential information confidential and take all reasonable precautions to prevent its disclosure. Users shall treat, store, process, transfer and modify any personal information data disclosed by the Company to users in connection with the Software and Services ("Personal Data") in accordance with applicable information security and privacy laws and further instructions from the Company. When the user no longer uses the Software and services or at the request of the Company, the user shall immediately return or destroy the confidential information (and any revisions, reproductions or derivatives thereof, including any documents) to the Company or its authorized representatives, images, prints or other media that include or contain any confidential information or any revisions, reproductions or derivatives thereof.

10.3 Please do not use any trademarks, service marks, trade names, domain names, website names, or other distinctive brand features of the Company and its affiliates (hereinafter collectively referred to as "Marks"), including but not limited to those of this Software and relevant products, without authorization in any events. Without the Company’s prior consent, you shall not use the Marks in any manner such as display, use, apply trademarks registration, or apply domain name registration, whether alone or in combination, and you shall not take any actions which express or imply to others that you have the right to display, use, or otherwise deal with such Marks. You shall bear all legal liabilities for any losses caused to the Company, its affiliates, or others as a result of your use of the above Marks in breach of this Agreement.

11. Handling of Breach

11.1 If you breach this Agreement or other relevant rules of the Software or products, the Company shall have the right, in its sole discretion, to take measures such as preliminary warning, immediately ceasing transmission of information, suspending the functions of the account, Software or product, or even closing the account permanently, as the case may be. The Company shall have the right to announce its decision on the foregoing cases and determine whether to allow the restore the functions of the account based on the actual circumstances. The Company will keep relevant records of the suspected violations of laws and regulations, or suspected crimes, report the same to the competent authorities, and cooperate with the investigations of the authorities in accordance with the law.

11.2 If your breach of this Agreement or other rules related to this Software or products triggers any third-party claims or lawsuits for compensations, you shall handle them on your own and undertake all legal liabilities that might arise therefrom. If the Company or its affiliates compensate any third party, suffer any penalties imposed by any governmental authorities, or incur any losses as a result of your violation, infringement or breach, you shall fully indemnify the Company and its affiliates for all losses incurred therefrom (such losses including the direct loss, loss of goodwill, compensation and settlement paid to third parties, reasonable attorney's fees, litigation fees and other indirect losses).We are not obliged to refund any fees to you.

12. Disclaimers

12.1 You understand and agree that the functions of this Software and relevant products can be affected or interfered by various factors, and the Company makes no warranties, express or implied, including but not limited to the following:

(1)The Services, Software, the functions of the products, or the Output are fully adapted to the user's usage requirements or expectations.

(2)The Services, Software, or the functions of the products are provided timely, secured, reliable, and error-free, and will not be interrupted.

(3)Any errors in the Software or the products can be corrected.

12.2 Artificial intelligence and machine learning are dynamic and continuously advancing. By agreeing to these terms, you recognize the inherent limitations of AI-generated output and accept responsibility for its application and interpretation within your context. By utilizing the Services, you acknowledge and agree to the following:

We make no representations, warranties, guarantees or conditions that any output is free from errors or bugs, authentic, accurate, verifiable, reliable, complete or up-to-date and disclaim any and all representations, warranties, guarantees and conditions of any nature for the output, expressly or implied.

12.3 The users understand and agree that the Company shall not be liable for its failure to perform this Agreement or provide the Software or functions of the products due to force majeure. The Company will make reasonable efforts to restore the normal use of the Software or relevant functions of the products.

12.4 The users have read, and thus understand and agree that this Agreement shall be enforced to the fullest extent permitted by law. If the relevant provisions are inconsistent with laws and regulations due to the amendments in laws and regulations or the special identity of the user, the laws and regulations shall prevail in terms of enforcement.

12.5 If the Software or product contains any software independently provided by a third party, or any software or services downloaded by you to this Software or products, you shall comply with relevant Service Agreements or other legal documents of such a third party, and the Company does not undertake any warranty or liabilities with respect to third-party’s software and services.

12.6 You understand and agree that this agreement is to protect compliance with national laws and regulations, maintain public order and good customs, and protect the legitimate rights and interests of others. The Company will do its best to judge in accordance with relevant laws and regulations within its ability, but it does not guarantee that the Company's judgment is completely consistent with the judicial authorities, and the user has understood and agreed to bear the consequences arising therefrom.

12.7 In no event shall the Company be liable for any indirect, consequential, punitive, incidental, special or penal damages (including lost profits due to your use of the Software and related services). The Company's full liability to you, for any reason or conduct, shall at all times not exceed the fees (if any) you paid to the Company for using the Software and services.

12.8 The Output are predictions with varying levels of confidence. Output should be interpreted carefully. Use discretion before relying on, publishing or otherwise using Protenix Web Server, Output and Derivatives. Protenix Web Server and Output are for theoretical modelling only. These are not intended, validated, or approved for clinical use. You should not use these for clinical purposes or rely on them for medical or other professional advice. Any content regarding those topics is provided for informational purposes only and is not a substitute for advice from a qualified professional.

12.9 The Services and the Output are provided "as is," without warranty of any kind. We explicitly disclaim any implied warranties of merchantability, fitness for a particular purpose, quiet enjoyment, and non-infringement, and any warranties arising out of course of dealing or usage of trade. We make no warranty that the services or any outputs will (1) meet your requirements or be available on an uninterrupted, secure, or error-free basis, or (2) regarding the quality, accuracy, timeliness, truthfulness, completeness, or reliability of any information or content on the services or any outputs. You are solely responsible for determining the appropriateness of using the services and outputs and assume any risks associated therewith.

13. Change, Interruption, and Termination

13.1 You understand and agree that the Software and the functions of the relevant products of the Company are provided based on the status quo which can be achieved based on the existing technology and conditions. The Company will use its best efforts to provide you with the services or related functions to ensure consistency and security of the services or functions. You understand and agree not to hold the Company liable for technical risks and other risks that cannot be foreseen or reasonably prevented from time to time, including but not limited to the disruption of the Software, Services, and functions of the products, loss of data, and other losses and risks as a result of force majeure, third-party reasons, routine or emergency maintenance of equipment and system where the Company has exercised reasonable care in management, equipment and system malfunctions, network and data security events, improper user operations, etc.

13.2 You acknowledge and agree that for the overall operation of the service and the security of the platform, the Company is entitled to change, interrupt, suspend or terminate the functions of the Software, related functions of the products, or the provision of contents, as the case may be, provided prior announcement and notification.

13.3 In terms of the Software and product functions, the Company does not make or undertake any implied commitment, including but not limited to the contents of the services, service level and the term of the services, unless expressly stated in service commitments or required by law. In particular, unless there is an explicit commitment of the term stated when acquiring the free services or functions, there will be no commitment of term made to such free services or functions. To the extent permitted by law, the Company may adjust the contents and service level of the free services after prior notification, considering reasonable factors such as improving the services and marketing operations. The foregoing adjustment including but not limited to upgrading the free services to a higher level of services for free or with a fee, suspending or stop providing the services.

14. General Rules

14.1 The term "Affiliates" in this Agreement means any company or institution that controlling, controlled by, or under common control with such a party at present or in the future. "Control" means the ability to directly or indirectly influence the management of the company mentioned herein, whether through ownership, voting shares, contracts or other means prescribed by law.

14.2 The formation, effectiveness, performance, interpretation, and dispute resolution of this Agreement shall be governed by the laws of the People's Republic of China. If any provision of this Agreement becomes invalid due to conflict with laws of the People's Republic of China, such provision shall be reinterpreted as closely as possible to the intent of the original provision of this Agreement, and the remaining provision shall remain in full force and effect.

14.3 This Agreement is executed in Haidian District, Beijing, People's Republic of China. Any disputes arising out of or in connection with this Agreement shall be resolved through friendly consultation by both parties. If such consultation fails, either party may submit the dispute to the court of competent jurisdiction in Haidian District, Beijing for judgement.

14.4 The Company is entitled to amend this Agreement if so requires by the changes to national policies, technical conditions, product functions, etc. The amended Agreement will be issued by the Company in accordance with relevant requirements. Once the foregoing is officially issued and delivered to users in appropriate manners (announcements via platforms such as the website or software and system notices etc.), it shall become an integral part of this Agreement, and you shall be deemed as agreed to be bound by continued use or login. If you disagree with the amended Agreement, please contact the Company immediately after the Amended Agreement is announced and stop logging in and using the Software, or relevant functions and services of the products. If you log in or continue using the Software and relevant functions of the products, it shall be deemed as you have agreed with the amended Agreement.

14.5 The headings used in this Agreement are for convenience and reading only, and do not affect the meaning or interpretation of any provision in this Agreement.

14.6 You and the Company are independent persons, and in no event shall this Agreement constitute a warranty or condition of any form that, expressly or impliedly, by the Company to the User, nor shall it constitute an agency, partnership, joint venture or employment relationship between the parties.

14.7 If any provision of this Agreement is or becomes invalid or unenforceable, the remaining provisions shall remain valid and binding upon the parties.

14.8 The copyright of this Agreement is owned by the Company.

15. Notices

15.1 You should provide us with true and valid contact information required by the Services (including your email address, contact number, contact address, etc.). If the contact information changes, you are obliged to update the relevant information in a timely manner and remain available for contact. If the notice cannot be delivered or failed to be delivered on time due to incorrect contact information or delay in informing the changed contact information, you shall be responsible for the legal consequences that may arise therefrom.

15.2 Notifications sent by Protenix Web Server to you in the form of pop-up windows to your browsing interface or in any other forms also constitute valid manners for sending notifications to you. We will deliver various notifications to you in any one or several of the foregoing forms, and such notifications may have material positive or adverse impact on your rights and obligations. Please kindly pay timely attention to it.