If you have any questions about placing an order, we’re here to help! Please send us your inquiry via E-mail at admin@sunjinus.com or call us at 640-230-7220.

If you have a customer service inquiry, we’re here to assist! For issues like order status, tracking, inventories, or incoming product inquiries, you can contact us via our support email at cs@sunjinusa.com or call us at 640-230-7220.

If you have questions about technical product specification, product development, or pricing, simply reach out to our technical support team! Please include a detailed description of the issue to help us provide the most accurate assistance. We’re committed to resolving any product-related concerns and ensuring you have the best experience with your purchase.

Our order processing time is typically 1–2 business days to prepare your order before it ships.

You can visit the Sample Request page on our website or simply contact us at cs@sunjinus.com to place your request.

We can process and prepare your order the same day if it is submitted by 11:00 A.M. EST.

Yes, you can modify or cancel an existing order by contacting us immediately at admin@sunjinus.com. However, if you’ve already received a tracking notification email, the order has likely been shipped, and changes or cancellations may no longer be possible.

Orders with requests submitted before 11am will be shipped on the same day. We don't take orders on weekends and on public holidays.

Depending on the type of goods, we send goods in boxes or on pallets. We ensure sufficient packing to minimize the risk of damage during transportation. The packaging material will be discussed with the customer in advance.

If no specific shipping window instructions are provided, we typically ship out orders within 1–2 business days.

Yes, you may arrange your own carrier for pickup. Alternatively, we can proceed with freight collect. Please ensure all necessary details are provided for a smooth pickup process.