Terms of
Service

2.1 Order Placement. All orders must be submitted in writing via email, purchase order document, or Manta's designated order portal. Verbal orders are not binding until confirmed in writing by both parties. Orders are deemed accepted only upon Manta's written order confirmation.

2.2 Order Cancellation. Orders may be cancelled without penalty within 24 hours of placement. For standard products, cancellations after production commencement will incur a cancellation fee of 20-50% of the order value depending on production stage. Custom synthesis orders are non-cancellable once raw materials have been procured.

2.3 Price Validity. Quoted prices are valid for 30 days from the date of quotation. Manta reserves the right to adjust pricing due to significant fluctuations in raw material costs (≥ 10%), currency exchange rates, or force majeure events. Customers will be notified promptly of any pricing adjustments.

2.4 Shipping & Logistics. Default trade terms are EXW Nanjing unless otherwise agreed. Manta can arrange freight forwarding on a CIF or DAP basis upon request. Customers are responsible for obtaining all necessary import permits, licenses, and customs clearance. Hazardous goods are shipped in compliance with IATA/IMDG regulations with full documentation.

2.5 Late Payment. Overdue invoices will accrue interest at 1.5% per month (or the maximum rate permitted by applicable law, whichever is lower) from the due date. Manta reserves the right to suspend ongoing orders or future shipments until outstanding balances are settled.

3.1 Custom Project Initiation. Custom synthesis or formulation development projects begin with a signed Technical Development Agreement (TDA) specifying target specifications, deliverables, timeline, cost allocation, and IP terms. No development work commences until the TDA is executed and the development fee is received.

3.2 Specification Approval. Customers must provide written approval of the final product specification sheet before commercial production. Any specification changes after approval may result in additional development charges and revised lead times.

3.3 Exclusivity. Manta may offer exclusive supply arrangements for custom-developed products to qualifying customers. Exclusivity terms, including minimum annual purchase commitments and duration, must be agreed in a separate Supply Agreement. Without a signed exclusivity agreement, Manta reserves the right to offer similar products to other customers.

3.4 OEM & Private Label. Manta supports OEM and private-label arrangements. Customer-branded packaging, labeling, and SDS/TDS customization are available subject to regulatory compliance review. All private-label products must meet Manta's minimum quality standards and applicable regulatory requirements in the destination market.

3.5 Non-Disclosure. All technical information exchanged during the customization process is subject to the confidentiality provisions in Section 1.4. Customers must not reverse-engineer, reproduce, or disclose Manta's proprietary synthesis processes or formulations.

4.1 Product Warranty. Manta warrants that all products, at the time of shipment, conform to the agreed specifications stated in the CoA. The warranty period is 12 months from the date of shipment for standard products, provided products are stored under recommended conditions (temperature, humidity, UV exposure) as stated in the SDS/TDS.

4.2 Warranty Exclusions. The warranty does not cover defects arising from: improper storage or handling by the customer; mixing with incompatible materials; use outside the stated application range; modification of the product by the customer; or normal product degradation beyond the shelf life stated in the TDS.

4.3 Retained Samples. Manta retains reference samples from each production batch for a minimum of 24 months. In the event of a quality dispute, both parties may conduct independent testing of the retained reference sample at an agreed accredited laboratory.

4.4 Technical Support. Manta provides post-sale technical support including application guidance, formulation troubleshooting, and compatibility advice. Technical inquiries should be directed to inquiry@mantasil.com. Response within 2 business days is our standard commitment.

4.5 Regulatory Documentation. Manta will provide, upon request and within 5 business days: Certificate of Analysis (CoA), Safety Data Sheet (SDS), REACH registration or pre-registration status, TSCA compliance statement, RoHS declaration, and California Proposition 65 assessment. Additional regulatory documents may be available subject to specific product and destination market.

5.5 Governing Law. These Terms and all commercial transactions between Manta and its customers shall be governed by and construed in accordance with the laws of the People's Republic of China, without regard to conflict of law principles. For international customers, the United Nations Convention on Contracts for the International Sale of Goods (CISG) shall apply where not inconsistent with these Terms.

5.6 Jurisdiction. For disputes not resolved through the process in Section 5.4, the parties submit to the exclusive jurisdiction of the courts of Nanjing, Jiangsu Province, China. International customers may alternatively elect arbitration under the China International Economic and Trade Arbitration Commission (CIETAC) rules.

5.7 Severability. If any provision of these Terms is found to be invalid, illegal, or unenforceable, the remaining provisions shall continue in full force and effect. The invalid provision shall be replaced by a valid provision that most closely achieves the original commercial intent.