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Mingyoung Conservation Inc

Mingyoung Conservation Inc (DBA DUKO) is a Multinational Corporation that specializes in designing, marketing, and servicing ceramic bathroom products. Our U.S. Headquarters is located in California. We provide not only DUKO Brands products, but also offer OEM/ODM/CFR/PPD trade terms.

Mingyoung Conservation Inc is the U.S. branch of Tangshan Mingyang Conservation Co., Ltd. based in Tangshan, which has earned a reputation of Ceramic Capital in Mainland China. Our manufactory possesses solid experience on supplying ceramic products to the U.S. and Canada clients.

Throughout the years, we have earned huge reputation in the North America market with our outstanding product quality and competitive product price. By building a rigorous Quality Control team, we ensure that every single product is timely-tested. We also implement another comprehensive inspection before shipping. We provide detailed report to let our clients get informed about their product at any time.

Our Products

Our products are engineered with artistic design, demanding materials, and elaborate manufacturing. With the focus on water saving and product quality, we deliver both highly conservative and valuable products to your day-to-day life.

Our main product line contains one-piece and two-piece toilet, bathroom sink with different configurations including drop-in, undermount, vanity, and pedestal one, as well as bathtub and faucet. We also manufacture commercial ceramic products, such as commercial urinal, flush valve, commercial toilet, and sink.

All of the toilets and sinks are IAPMO tested and meet or exceed cUPC® standards. We have joined the U.S. Environmental Protection Agency’s (EPA’s) WaterSense® program and became a partner. We aim at providing BEST customer services operated as well as HIGHEST product quality with our professionalism and enthusiasm.

Featured Product


One-Piece, Dual Flush, Elongated Toilet – ADA Height

Our A212HL dual flush toilet provides exceptional value, comfort and support. The ADA compliant seat height gives users added easability of sitting and standing. The dual flush technology allows for increased water efficiency while providing a powerful flush.

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