Effective Date: August 15, 2025
Company: Zhangjiakou Dingwei Biotech Co., Ltd. (Brand: Dinweys)
Website: https://cholinebio.com
Contact Email: martin@dinweys.com
Welcome to Dinweys (https://cholinebio.com), a professional supplier of feed additives, choline, vitamins, and nutritional products.
These Terms and Conditions (“Terms”) govern your access to and use of our Website and your purchase of products from Dinweys.
By accessing or using our Website, you agree to be bound by these Terms.
If you do not agree, please stop using our Website immediately.
You agree to use our Website for lawful and legitimate purposes only. You must not:
Violate any applicable laws or regulations.
Attempt to gain unauthorized access to our server, systems, or data.
Upload viruses, malware, or harmful code.
Use automated tools (scrapers, bots, crawlers) without permission.
Copy, resell, or exploit Website content for commercial use without authorization.
Dinweys reserves the right to suspend or block access for violations.
We strive to provide accurate descriptions, specifications, documentation, and images.
However, all information is provided “as is” and may be updated without notice.
All products listed on this Website are:
Feed-grade additives only
For animal nutrition use only
Not for human consumption, food processing, pharmaceutical use, or medical use
If you need food-grade or pharmaceutical-grade materials, please contact us separately.
Dinweys is not responsible for improper or unauthorized use of products.
Placing an order constitutes your offer to purchase products. Dinweys reserves the right to:
Accept or reject orders
Request additional verification
Cancel suspicious or incomplete orders
Prices are listed in USD, unless stated otherwise.
Prices exclude shipping, taxes, VAT, and customs duties unless specified.
Typographical or system errors in pricing may be corrected.
Payments must be made using the methods displayed on the Website or mutually agreed channels (TT, LC, etc.).
Orders will be processed only after payment confirmation.
Delivery times are estimated and not guaranteed.
Shipping delays caused by carriers, customs, or force majeure are not Dinweys’ responsibility.
Risk of loss or damage transfers to the buyer once goods are delivered to the carrier (FOB/EXW/other Incoterms depending on contract).
We may assist with tracking and documentation but are not liable for third-party logistics issues.
Return requests must comply with our Return Policy.
Contact martin@dinweys.com for authorization.
Products must remain unopened, unused, and in original packaging, unless a defect is confirmed.
Unauthorized returns may be rejected.
Refunds are processed after inspection.
All Website content—including text, images, videos, product data, logos, documents, and software—is the property of Dinweys or licensed sources.
You may not:
Reproduce
Modify
Distribute
Publish
Use for commercial purposes
without prior written permission.
To the fullest extent permitted by law:
Dinweys is not liable for indirect, incidental, punitive, or consequential damages.
Dinweys is not responsible for losses caused by improper storage, handling, or use of feed additives by the buyer.
Our total liability is limited to the purchase price of the product involved in the claim.
We do not guarantee uninterrupted availability of the Website.
Buyers are responsible for:
Ensuring imported feed additives comply with the laws of their country
Obtaining required permits, import licenses, and customs clearance
Using products strictly for approved animal feed purposes
Dinweys does not assume responsibility for a buyer’s regulatory non-compliance.
These Terms are governed by the laws of the People’s Republic of China.
Any disputes shall be submitted to the competent courts of Zhangjiakou, Hebei Province, China.
(If you want arbitration instead of court, I can modify this.)
Dinweys may update or modify these Terms at any time.
Changes will be posted on this page with the updated Effective Date.
Continued use of the Website after updates constitutes acceptance of the revised Terms.
For inquiries regarding these Terms, products, or feed-grade requirements, please contact:
Company: Zhangjiakou Dingwei Biotech Co., Ltd.
Brand: Dinweys
Website: https://cholinebio.com
Email: martin@dinweys.com