When Xuntong Testing (hereinafter referred to as “the Company”) conducts the required inspections and tests for customers, it shall be carried out in accordance with the following terms. The Company also reserves the right to refuse to accept any client’s commission for testing without giving any reason:

1. Scope of service and terms of entrustment.

1.1 The Company only provides services to certain customers or institutions (hereinafter referred to as “Customers”). Unless authorized by the customer, no unit or individual has the right to give any instructions to the company, especially regarding the scope of the test, the delivery of reports and certificates.

1.2 On the premise that the company accepts the client’s entrustment, the company will issue a test report (and/or certificate, the same below) to present the company’s opinions within the scope of the client’s entrustment; in principle, the company can provide the language in any of the three forms: Chinese/English/Chinese-English (except for special exceptions, subject to the interpretation of the testing laboratory). Customers must submit sufficient and accurate test sample information to the company, otherwise the company will not be responsible for any relevant errors in the certificate and/or report. The test report of this laboratory is presented to customers in electronic format (PDF format). If customers need a paper version, please print it themselves.

1.3 If the customer has not specified the test method or standard to be applied for the test, the company will select the appropriate method or standard; the customer can obtain more information about the test method by contacting the company. For situations where compliance determination needs to be made based on test values, if there are no relevant requirements from relevant specifications, standards, documents and customers and no special instructions, the inspection and test report issued by this laboratory uses full values for determination.If the selected test method needs to be changed due to technical reasons, regulatory updates or sample characteristics during the implementation process, the company will promptly notify the customer and obtain their written consent (unless the change is a minor adjustment and does not affect the test purpose and determination conclusion). If the customer does not agree to the change, the company has the right to terminate the service and the customer will have to pay the fees already incurred.

1.4 If the customer’s request requires testing on the sample to be carried out in the customer’s or any third party’s laboratory, the company will only transmit the results of the test on its behalf and will not be responsible for its accuracy. The company can only prove that the customer or any third party’s laboratory has conducted the relevant test, that is, the company can only confirm that a correct sample has been tested and is not responsible for the accuracy of the test.

1.5 If necessary, the company may subcontract all or part of the testing services to a qualified contractor. If the customer does not raise any objection to the above when submitting the application form for testing services, the customer will be deemed to have agreed to the company’s arrangement.The company promises to subcontract services only to qualified subcontractors with corresponding qualifications and capabilities. If requested by the customer, the company can provide the name of the main subcontractor (except for commercial secrets or security reasons). The Company assumes the ultimate responsibility for the work of the subcontractors, but reserves the right to recover from the subcontractors for any losses caused by the subcontractors ‘intention or gross negligence.

2. Customer obligations

2.1 All materials, equipment and other property subject to inspection and testing are delivered to the Company at the customer’s expense and in accordance with the Company’s relevant regulations. When the relevant inspections and tests are completed, the customer must take away the relevant materials or equipment when required by the company.When retrieving samples, customers must present valid identification and sign on the company’s sample return record or sample handover order. From the time the company delivers the samples to the customer or its designated carrier (requiring written authorization), their risks and responsibilities are transferred to the customer. If customers arrange their own transportation, they need to ensure compliance with relevant safety regulations.Under any circumstances, if the customer fails to remove the relevant materials or equipment within 4 weeks from the date of issuance of the test report (if the materials are of an easily consumable nature, such as samples of liquids and powders, the time limit is two weeks), the Company may dispose of the materials or equipment at its discretion without compensating the customer.

2.2 Customers must abide by the following terms before or while providing services by the Company:

a) Provide timely requirements and sufficient information to enable the company to provide effective services;

b) At the request of the company, provide necessary equipment and personnel to enable the company to effectively provide services;

c) Take all necessary actions to eliminate or remedy anything that would hinder the Company’s provision of services;

d) Notify the company in advance of the actual or potential dangers of the sample or testing;

f) During the company’s on-site services, customers need to ensure the safety of working conditions, venues and facilities;

g) Regardless of whether the company has issued a test report or certificate, the customer must fully perform its responsibilities under the contract (such as a sales contract) signed with a third party, otherwise the company will not have to assume any responsibility to the customer.

2.3 Customers need to ensure the legitimacy, authenticity and representativeness of the samples submitted for inspection. If the report is invalid due to sample problems (such as counterfeiting or tampering), the customer will bear full responsibility and the fees paid will not be refunded.Due to testing needs, the company does not assume the responsibility of ensuring non-damage to customer samples during and after testing. Customers voluntarily accept the status of the samples provided by the company during or after testing, and cannot claim compensation from the company for this.

2.4 If a customer intends to use the test report issued by the company in judicial or arbitration proceedings, the customer must clearly state this purpose before submitting samples to the company for testing.

2.6 The company accepts and archives samples based on the following conditions: the sample has been insured by the customer or is responsible for any force majeure losses due to fire and any force majeure losses that occurred during the company’s analysis or processing of the sample, and no loss can be recovered from the company or its employees, agents or independent contractors.

2.7 The customer should promptly support all fees related to the test on the date of the invoice issued by the company or within a specific date agreed by the company in writing, otherwise the customer will be required to pay interest (calculated at a rate of 3% per month) from the date of the invoice to the actual payment date. The customer is also required to pay all fees, including legal fees, used by the Company to recover the amount owed.

2.8 For samples that are radioactive, infectious, highly toxic, explosive, highly corrosive or other high-risk characteristics, or are intended to be used for tests with special legal effect such as justice, arbitration, certification, product registration, etc., customers must clearly inform the company in writing at the time of commission, and additional special treatment, security or expedited fees may be required. If the customer fails to declare in advance that it causes additional expenses or losses to the company, the customer shall bear full responsibility.

2.9 If the samples submitted for inspection involve chemicals controlled by regulations such as the National Regulations on the Management of Precious Chemicals and the List of Explosive Hazardous Chemicals, the customer must provide legal purchase, use or storage certification documents and comply with relevant regulatory requirements. The company reserves the right to refuse to accept samples of controlled chemicals that cannot provide compliance certificates.

2.8 Special handling of large batteries and energy storage power samples, in view of the possible safety risks and environmental protection requirements of large-capacity batteries (such as lithium-ion batteries, lead-acid batteries, etc.) and energy storage power supplies (such as portable energy storage devices, household energy storage systems, etc.), customers must comply with the following requirements:

1. Customers should retrieve samples of large batteries or energy storage power sources within 7 natural days after the test report is issued. If it is not retrieved within the time limit, the company has the right to handle it in the following ways: (1) For samples that meet safety standards, the company can store them on its behalf, but the customer needs to pay XXX yuan per day Storage fee (the specific amount is determined based on storage cost);(2) For samples with safety hazards (such as liquid leakage, bulging, overheating, etc.) or exceeding the storage period, the company will conduct professional disposal in accordance with the Law of the People’s Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste “and relevant regulations, and the disposal expenses will be borne by the customer.
2. Customers need to ensure that the samples submitted for inspection comply with relevant China and international regulations on transportation, storage and disposal (such as UN38.3, GB31241, etc.). If a safety accident (such as fire, explosion, pollution, etc.) occurs during storage or disposal due to defects in the sample itself, the customer shall bear full responsibility and compensation.
3. Special statement: If customers need our company’s assistance in disposing of waste samples, they should apply in writing in advance and pay the disposal fee. The company does not assume any legal liability caused by customers ‘failure to retrieve samples in time or illegal disposal of samples.

3 Confidentiality and intellectual property

3.1 The customer guarantees that the samples, technical data, test requirements, etc. provided by it (‘customer background information’) do not infringe on the intellectual property rights of any third party. Customers retain all intellectual property rights to their background information. The company uses customer background information only for the purpose of fulfilling the contract.

3.1 The company will handle and issue relevant test reports to customers in a confidential manner. Without the company’s written consent, this test report may not be partially reproduced (except for full reproduction) for publicity or other purposes without the company’s permission. After customers receive the relevant test report from the company, they can display or transmit the test report to their customers, suppliers or other directly relevant persons. Without prejudice to Article 3.2, unless required by relevant government agencies, laws or court orders, the Company will not conduct any discussions, correspondence or disclosure with other parties on the content of the test report without the consent of the customer.

3.2 Unless the customer objects in writing when submitting the commissioning test application form, the company will have the right to disclose relevant test documents and/or files to any third-party certification/accreditation body for review and other related purposes. The Company does not accept any responsibility for disclosing the content of documents and/or files.

3.3 All legal property rights (including intellectual property rights) related to any reports, certificates or other materials derived by the company during the period of providing testing services are owned by the company.

4 Limitation of liability and exemption clauses

4.1 Any documents (such as sales contracts, transportation certificates, etc.) that record the mutual relationship between the customer and other parties will be treated as purely information by the company and will not affect the scope of services or responsibilities entrusted by the customer.

4.2 The company will not be responsible for any losses caused by customers using any test reports (and/or information in communications) issued by the company.This report is only responsible for the samples tested, and the results only reflect the sample status and method standards selected during the test. No partial quotation, taken out of context or used for misleading publicity. Without the company’s written consent, it shall not be used in scenarios that require third-party approval such as product certification and registration (unless the report itself has stated that it meets specific certification requirements). Users of the report should fully understand its limitations and scope of application.

4.3 Without prejudice to clause 4.1, the total amount of compensation borne by the Company for any loss will not exceed the amount of service fees that the Company may charge in connection with the recovery.3Times; our company’s liability for compensation will never include any indirect, special or subsequent losses to our customers (i.e., damage or loss not caused immediately by the accident, but caused as a result).

4.4 If the Company fails to provide the testing service due to any factors beyond the Company’s control, and the testing service has been entrusted or the relevant agreement has been agreed upon, the customer shall still pay the following fees to the Company:

a) All fees and expenses paid by the company in connection with the test services;

b) Part of the agreed fee or commission for such testing services that is proportional to the testing services already provided by the company; at the same time, the company does not have to continue to bear some or all of the uncompleted responsibilities for such testing services.

4.5 The Company will not be liable for any compensation in respect of the recovery unless the recovery is filed within one year from the date of the services provided by the Company to which the recovery relates, or within one year from the date on which the Company should have provided the services.

4.6 The customer must agree that the company does not replace the customer’s responsibilities of other parties by establishing a contractual relationship with the customer or providing testing services. In addition, the company is not an insurance insurer or guarantor and will not bear any liability in this regard.

4.7 If any other party claims to recover any losses or expenses incurred by the Company, employees, agents or independent contractors in connection with the Company’s provision or failure to provide testing services, and the total amount of the recovery related to the testing services exceeds the compensation limit stipulated in Article 4.2, the customer shall compensate the Company for the difference in the total amount of the recovery exceeding the compensation limit stipulated in Article 4.2.

4.8 The Client agrees that the reports obtained from the tests commissioned by the Company shall not be used as the basis for legal action against the Company.

4.9 When the Company receives a customer’s request, the Company may transmit the results of the test service through electronic media and do its best to keep the customer’s data confidential. However, the customer should note that electronic media transmission cannot guarantee that the information contained therein will not be lost, delayed or intercepted by other parties. The company will not be responsible for the disclosure, error or omission of any information contained in electronic media transmission. Customers choose to receive reports electronically by accepting all risks inherent in that method. The company recommends using encrypted email or secure customer portals for transmission. Customers are responsible for ensuring the security of their receiving systems and the accuracy of their mailboxes.

5 Fees and Additional Terms

5.1 The quotation/valuation provided by the company is based on initial information and standard procedures provided by the customer. If actual circumstances (such as sample complexity, test difficulty, standard updates, changes in customer requirements) cause a significant increase in costs, the company will promptly notify the customer and obtain written confirmation before continuing. Customers have the right to choose to accept the new offer or terminate the service (pay the fees already incurred).

5.2 The customer should promptly support all fees related to the test on the date of the invoice issued by the company or within a specific date agreed by the company in writing, otherwise the customer will be required to pay interest (calculated at a rate of 3% per month) from the date of the invoice to the actual payment date. The customer is also required to pay all fees, including legal fees, used by the Company to recover the amount owed.

1. The customer shall pay all fees in accordance with the invoice amount issued by the company and the agreed payment term (usually within 30 days from the invoice date). If the customer fails to pay on time, the company has the right to suspend or terminate the unfinished services, and the customer still needs to pay the fees incurred.
2. Customers who make late payments are subject to the following responsibilities: interest will be charged at 3% per month on the unpaid amount; and all expenses incurred by the company in recovering the arrears (including legal fees, litigation fees, etc.)
3. For high-risk or high-cost projects, the company may require customers to pay a prepayment of not less than 50% of the total cost before the service starts, otherwise the company has the right to refuse to provide the service.
4. All fees are priced and paid in RMB unless otherwise agreed in writing. The handling fees incurred by international remittances are borne by the customer.
5. If the customer has any objection to the fee, it shall submit it in writing within 7 days after receiving the invoice, and the two parties shall resolve it through negotiation. During the negotiation period, payment obligations for non-disputed portions will not be affected
6. The following fees are not refundable once incurred: sample testing fees, rectification countermeasures and plan formulation fees, report preparation fees and any payments paid to subcontractors or suppliers.

5.3 Liability for breach of contract if the customer terminates the entrustment without reason

1. If the customer unilaterally and without reason terminates the commission after the start of the testing service (not due to the company’s fault or force majeure), the customer shall bear the testing costs, sample processing costs and other direct losses already incurred;
2. The company has the right to suspend services after receiving customer termination notice, and charge a late payment fine of 3% of the unpaid fees per month from the date of notification until all amounts are settled.

5.4 Handling rules for service suspension for any reason

1. Force majeure or suspension under special circumstances: If the service is suspended due to force majeure such as natural disasters, government actions, epidemics, or laboratory emergencies (such as equipment failures, power outages), the company shall promptly notify the customer and negotiate to extend or terminate the service; If you choose to terminate the service, the company will refund the fees not actually incurred by the customer, but the customer will still have to pay the costs already incurred (such as sample pretreatment, partial test data).
2. If the service cannot be continued due to the customer’s failure to fulfill its obligations (such as failure to provide necessary information or failure of samples to meet the requirements), the company has the right to terminate the service, and the customer will still have to pay the fees incurred.
3. Force majeure includes: war, strike, network interruption, supply chain interruption, etc. The affected party must notify the other party in writing within 48 hours of the incident.

5.5 The Company reserves the right to add special terms to all the above clauses based on the individual circumstances of the inspection and testing services required by the customer (this clause will take effect only when the customer receives relevant notice from the Company).

5.6 Both parties are prohibited from soliciting/providing bribes (such as kickbacks, gifts) in any form.

6 Dispute resolution and application of law

6.1 For any dispute or claim arising between the Company and the Customer arising out of this Agreement or regarding the breach, termination or invalidity of this Agreement, the above provisions shall take precedence over any other terms previously agreed by the parties or their agents, orally or in writing.

6.2 The above clauses are applicable to the laws of the People’s Republic of China, and any disputes arising from or related to the above clauses shall be resolved through friendly consultations.If the negotiation fails to resolve the dispute within [30] days, both parties agree to give priority to submitting the dispute to the Ningbo High-tech Zone Court for arbitration.The arbitration award shall be binding on both parties. The arbitration costs shall be borne by the losing party.

6.3 If there is any ambiguity between the Chinese and English versions of the above terms, the Chinese shall prevail.

7 Data and reports

7.1 The default validity period of the test report is 2-5 years (except for special industries). If you need to reuse it after the expiration date, the customer will need to apply for review and pay the corresponding fee.

7.2 The original test data is preserved for 6 years, and the company has the right to destroy it after the expiration date.

8 other

8.1 Under the customer’s authorization, the company will deliver the report or certificate to the place designated by the customer in a manner as appropriate (based on actual conditions, industry habits, habits or general practices).

8.2 Unless the company does conduct sample testing and clarify this fact in the relevant test report, the test report will only apply to the samples that have been tested and will not apply to large quantities of relevant goods.

8.3 If the customer uses the test report improperly, the company reserves the right to withdraw the test report and take any appropriate measures.

8.4 The company has the right to update the terms, and the new version of the terms will take effect 30 days after it is announced on the official website.

Announcement date November 1, 2025

Ningbo Xuntong Standard Technical Service Co., Ltd.

November 1, 2025