Terms of Service

Last Updated: May 9, 2026

These Terms of Service ("Terms") govern your access to and use of the Build AI platform, including the BuildPlan, BuildManage, BuildCost, and any related services and software (collectively, the "Service") provided by Bileg Duro LLC ("Build AI", "we", "us", or "our"). By creating an account, signing an order form, or otherwise using the Service, you ("Customer", "you") agree to be bound by these Terms. If you are entering into these Terms on behalf of an organization, you represent that you have the authority to bind that organization, and the term "Customer" refers to that organization.

1. Definitions

"Customer Data" means data and content (including project data, drawings, photographs, financial data and personal data of authorized users) submitted to the Service by Customer or its authorized users. "Authorized User" means an individual employee, contractor, or representative of Customer who is authorized by Customer to access the Service under Customer's account. "Order Form" means an ordering document or online purchase flow specifying the subscription plan, fees, term, and other commercial terms agreed between Customer and Build AI. "Documentation" means the user-facing technical documentation made generally available by Build AI for the Service.

2. The Service

Build AI provides a software-as-a-service platform that enables construction-industry organizations to plan projects, manage delivery, capture and analyze costs, and collaborate across teams. The Service includes machine-learning-assisted features for document understanding and recommendation. Specific features are described in the Documentation and may be updated from time to time. Build AI may add, modify, or remove features in the ordinary course of product development; we will not materially decrease the core functionality of a paid plan during a Customer's active subscription term without reasonable prior notice.

3. Account Registration and Security

To use the Service, Customer must create an account and may invite Authorized Users. Customer is responsible for: (a) the accuracy of registration information; (b) maintaining the confidentiality of account credentials; (c) all activities that occur under Customer's account; and (d) promptly notifying Build AI of any suspected unauthorized access at the email below. Build AI may suspend access if it reasonably believes that account credentials have been compromised, until the matter is resolved.

4. Customer Data; License and Confidentiality

As between the parties, Customer owns all right, title, and interest in Customer Data. Customer grants Build AI a limited, non-exclusive, worldwide, royalty-free license to host, copy, transmit, and process Customer Data solely as necessary to (i) provide and improve the Service for Customer, (ii) prevent or address service or technical problems, (iii) comply with applicable law or a valid order from a competent authority. Build AI will treat Customer Data as Customer confidential information, will not sell or rent Customer Data, and will not use Customer Data to train AI or machine-learning models that are made available to other customers, except where data has been irreversibly aggregated or anonymized so that no individual or organization can be identified.

5. Subscription, Fees, and Payment

Paid subscriptions are billed in advance on a monthly or annual basis as specified in the applicable Order Form. Fees are non-refundable except as required by law or as expressly stated in these Terms. Customer authorizes Build AI to charge the payment method on file for all amounts due. If a payment is overdue more than 14 days, Build AI may suspend the Service after providing written notice and a reasonable opportunity to cure. Build AI may change list prices on at least 30 days' written notice; price changes do not apply to the unexpired portion of an annual prepaid term.

6. Acceptable Use

Customer and its Authorized Users will not: (a) use the Service in violation of applicable law; (b) upload or transmit malware, viruses, or destructive code; (c) probe, scan, or attempt to penetrate the security of the Service except as part of a coordinated security disclosure invited by Build AI; (d) reverse-engineer, decompile, or disassemble the Service or attempt to derive its source code; (e) access the Service to build a competing product or service; (f) resell, sublicense, or otherwise make the Service available to third parties outside of Customer's organization; (g) use the Service to store or process data that requires regulatory regimes Build AI has not agreed in writing to support (e.g., regulated health records, classified government information).

7. Service Availability and Support

Build AI will use commercially reasonable efforts to make the Service available 24×7, excluding (a) planned maintenance, for which Build AI will use reasonable efforts to provide advance notice; (b) emergency maintenance; and (c) outages caused by factors outside Build AI's reasonable control (see "Force Majeure"). Service-level commitments, including uptime targets and credits, if any, will be set out in the applicable Order Form or service-level agreement. Standard support is provided by email at the contact address below during business hours; expanded support may be offered as part of a paid plan.

8. Intellectual Property

The Service, including all software, designs, trademarks, and Documentation, is owned by Build AI or its licensors and is protected by intellectual-property laws. Build AI grants Customer a limited, non-exclusive, non-transferable, non-sublicensable right to access and use the Service during the subscription term solely for Customer's internal business purposes. Build AI welcomes Customer feedback; if Customer submits suggestions or feedback, Customer grants Build AI a perpetual, royalty-free license to incorporate that feedback into the Service without obligation. Nothing in these Terms transfers ownership of any pre-existing intellectual property between the parties.

9. Suspension and Termination

Either party may terminate a subscription for material breach of these Terms if the other party fails to cure the breach within 30 days of written notice describing it. Build AI may suspend the Service immediately if Customer's use poses an imminent security risk, exposes Build AI to legal liability, or violates Section 6 (Acceptable Use); Build AI will use reasonable efforts to notify Customer in connection with any such suspension. Upon termination: (a) Customer's right to access the Service ends; (b) Build AI will, on Customer's written request made within 30 days of termination, make Customer Data available for export in a commonly used format; and (c) thereafter Build AI may delete Customer Data in the ordinary course, subject to legal retention obligations.

10. Disclaimer of Warranties

EXCEPT AS EXPRESSLY STATED IN THESE TERMS OR AN ORDER FORM, THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE". TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, BUILD AI DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ANY WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE. BUILD AI DOES NOT WARRANT THAT THE SERVICE WILL BE ERROR-FREE OR UNINTERRUPTED, OR THAT MACHINE-LEARNING-GENERATED OUTPUTS WILL BE ACCURATE FOR ANY PARTICULAR PURPOSE; CUSTOMER IS RESPONSIBLE FOR REVIEWING SUCH OUTPUTS BEFORE RELIANCE.

11. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, NEITHER PARTY WILL BE LIABLE TO THE OTHER FOR ANY INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR LOSS OF PROFITS, REVENUE, GOODWILL, OR DATA, ARISING OUT OF OR IN CONNECTION WITH THESE TERMS OR THE SERVICE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EACH PARTY'S AGGREGATE LIABILITY UNDER THESE TERMS WILL NOT EXCEED THE FEES PAID OR PAYABLE BY CUSTOMER TO BUILD AI FOR THE SERVICE IN THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO LIABILITY. THE LIMITATIONS IN THIS SECTION DO NOT LIMIT EITHER PARTY'S LIABILITY FOR (i) WILLFUL MISCONDUCT OR FRAUD, (ii) AMOUNTS OWED UNDER AN ORDER FORM, OR (iii) LIABILITY THAT CANNOT BE LIMITED BY APPLICABLE LAW.

12. Indemnification

Build AI will defend Customer from and against any third-party claim alleging that Customer's authorized use of the Service infringes that third party's intellectual-property rights, and will pay damages finally awarded against Customer (or amounts in a Build-AI-approved settlement) arising from such claim. Customer will defend Build AI from and against any third-party claim arising out of (a) Customer Data, including claims that Customer Data infringes third-party rights or violates law, (b) Customer's use of the Service in breach of these Terms, or (c) Customer's authorized users' actions. The party seeking indemnification will give prompt written notice of the claim, give the indemnifying party sole control of the defense and settlement (provided no settlement requires the indemnified party to admit liability), and provide reasonable cooperation.

13. Force Majeure

Neither party will be liable for any failure or delay in performance (other than payment obligations) caused by circumstances beyond its reasonable control, including natural disaster, war, terrorism, civil disturbance, labor disputes, government action, internet or telecommunications failures, or epidemic. The affected party will use reasonable efforts to mitigate the effect of the force-majeure event.

14. Modifications to the Terms

Build AI may update these Terms from time to time. If Build AI makes a material change, it will provide reasonable notice — at least 30 days for paid plans — by email to the account contact or by an in-product notice. Continued use of the Service after the effective date of the updated Terms constitutes acceptance. If Customer does not accept the updated Terms, Customer's sole remedy is to terminate the subscription as of the effective date and receive a pro-rata refund of unused prepaid fees.

15. Governing Law and Dispute Resolution

These Terms are governed by the laws of Japan, without regard to its conflict-of-laws rules. The parties will first attempt to resolve any dispute by good-faith negotiation. If a dispute cannot be resolved within 60 days, it will be submitted to the exclusive jurisdiction of the Fukuoka District Court, Japan. The parties waive any objection to venue or jurisdiction in those courts.

16. General

These Terms (together with any Order Form, Documentation incorporated by reference, and any data-processing terms agreed in writing) constitute the entire agreement between the parties regarding the Service and supersede prior agreements on the same subject. If any provision is held unenforceable, the remaining provisions remain in full force, and the unenforceable provision will be modified to the minimum extent necessary to make it enforceable. Neither party may assign these Terms without the other's written consent, except that Build AI may assign these Terms to an affiliate or in connection with a merger, acquisition, or sale of substantially all of its assets, on prior written notice. No waiver of any right is effective unless in writing.

17. Contact

Bileg Duro LLC Email: contact@build-ai.tech Registered office: Yalalt Plaza Office, 4th Floor #409, 5th Khoroo, Chingeltei District, Ulaanbaatar, Mongolia Japan office: 1-15-30 Tenjin, Chuo-ku, Fukuoka-shi, Fukuoka, 810-0001, Japan For commercial questions, please contact your account representative or the email above. For security-related disclosures, please use the same email and mark the subject line "Security".