We manufacture packaging products in Wenzhou, China, and sell them on Amazon. This site describes our company and the ERP application we operate, which connects to Amazon, TikTok Shop and Walmart Connect advertising through their official APIs.
We design and manufacture packaging products at our facility in Wenzhou, Zhejiang. Our registered scope of business covers paper and plastic packaging, bags and cases, home textiles, arts and gift items, and licensed production of food-grade paper packaging and containers.
We sell directly to end customers on Amazon, operating our own seller accounts. Orders are fulfilled through Amazon FBA in the United States, with stock shipped from our facility in Wenzhou.
Running manufacturing and marketplace retail from one team means order, inventory and settlement data has to live in one place. No off-the-shelf tool matched how we work, so we built our own.
Manufacture and sale of paper-based packaging products.
Manufacture and sale of plastic packaging products.
Manufacture and sale of bags, cases and carrying products.
Licensed production of paper packaging and container products for food use.
We develop and operate Duoshou ERP, an ERP application that connects to e-commerce marketplaces through their official APIs. We use it for our own stores, and we also provide it as a hosted service to other cross-border sellers; each such seller authorises our application for their own seller and advertiser accounts. For each account that authorises it, the application consolidates orders, inventory, fulfilment, settlement and advertising data into a single management console used by that seller's own team. It is connected to Amazon through the Selling Partner API, and is being integrated with TikTok Shop through the TikTok Shop Partner API. It is also integrated with Walmart Connect advertising through the Sponsored Search API (see below). The Selling Partner API roles we have requested, and what each is used for, are listed below.
Orders, order items, order status and fulfilment status; inventory quantities across fulfilment channels. Powers the consolidated order desk, low-stock alerts and replenishment planning.
FBA inbound shipment plans and shipment status, to plan replenishment and reconcile received quantities against quantities sent.
Financial events, settlement reports, fees, refunds and reimbursements, reconciled line by line and combined with the seller's own cost data to produce revenue, cost and profit figures.
Selling Partner account and performance information, presented as account health, sales performance and operational metrics in the seller's dashboards.
Create and maintain listings on the seller's behalf: listing attributes, images, variation relationships and A+ content. Every change is logged with acting user, timestamp and old/new values.
The seller's own item prices and competitive pricing data, plus list-price updates applied according to target prices and margin floors the seller configures. Full change history retained.
For merchant-fulfilled orders: shipping service offers and rates from Amazon as a shipping service, purchase of the selected service, and package tracking through to delivery.
For sellers enrolled in Amazon Brand Registry: search term performance, market basket analysis and repeat purchase behaviour, to support product selection and listing optimisation.
All Restricted roles — Direct-to-Consumer Shipping, Tax Invoicing, Tax Remittance and Professional Services — together with Buyer Communication, Buyer Solicitation, Sustainability Certification and Amazon Warehousing and Distribution. We do not need them and have not applied for them, and therefore do not receive buyer personal information.
The application is integrated with the Walmart Connect Sponsored Search API as a technology provider in the Walmart Connect Partner Network. Advertisers grant access to their own Walmart Connect advertiser accounts, and the application works only with the accounts that have granted access. It is offered to marketplace sellers based in China, with a fully Mandarin interface and Mandarin-speaking support.
Create and edit Sponsored Products campaigns, ad groups, advertised items, keywords, negative keywords and placement / platform bid multipliers; change budgets, bids and status. Every change is written to an operation log with the previous and new value and the user who made it.
Daily campaign, ad group, item, keyword and placement reports, plus hourly near-real-time spend and budget pacing for the current day. Advertising cost is combined with the seller's own product cost to show ROAS and ACoS per product.
Sponsored Brands and Sponsored Videos campaigns, creative production, and display advertising are not offered at this time. Walmart advertising data contains campaign settings and aggregated performance metrics only; it does not identify individual shoppers.
On Amazon, the application does not retrieve buyer names, shipping addresses, phone numbers or email addresses, and we have not requested any role that grants access to restricted buyer data. Where another marketplace's fulfilment model requires buyer contact data — as the semi-managed model does — that is described per marketplace in our privacy policy.
All traffic runs over TLS. Stored Amazon data and API credentials are encrypted at rest, with keys managed separately from the data they protect.
Each authorising seller account is a separate tenant. Data from one account is never readable from another, and access inside our team is granted by job function.
A seller can revoke authorisation at any time. Access stops immediately and the account's data is deleted within 30 days.
We maintain a written incident response plan, reviewed every six months. Any security incident involving Amazon Information is reported to security@amazon.com within 24 hours of detection.
Full detail on what we collect, why, how long we keep it, and how to have it removed.