TONGCHEM,is one of the directors of Deqing County Chamber of Commerce. It is also a unit that combines iron oxide production and sales, and has the right to self-import and export. Since its establishment in 2001, the company has been mainly engaged in the production and export of iron oxide pigments, other organic and inorganic pigments, and its business scope has covered Europe, Russia, the United States, Canada, Australia, Southeast Asia and more than 100 countries and regions. It has raised 29 million U.S. dollars, and its annual export volume in 2016 has reached 33 million U.S. dollars.

The company has developed into a modern diversified company covering four major business areas: chemical, building materials, decoration, and packaging. We are adhering to the spirit of “integrity, cooperation, mutual benefit, and learning”, constantly blaze new trails, and adjust our implementation strategy. With rigorous, efficient, and reliable work style, we are committed to providing the most advanced products and services to our customers with “full of passion and dedication”.


TONGCHEM administers six professional subsidiaries, including:

Zhejiang Timber New Material Co.,LTD. :Founded in 2003, it is a newly-emerging environment-friendly plastic-wood manufacturing enterprise integrating production, design, research and development, sales and service. Based on the world-leading plastic wood material production technology and equipment, the company implements strict raw material, production and customer relationship management systems, and has passed ISO9001, 14001, CE, ASTM, SGS and other related certifications and tests.
HUZHOU TONGDA PACKING CO.,LTD. :Founded in 2006, the company's main products are multi-layer kraft paper bags, paper-plastic composite bags, woven bags, color valve pockets, container bags, low-melting plastic bags, PVA water-soluble bags, wooden trays, fumigation trays, and various types of fumigation-free Laminated pallets, crates, corrugated cardboard boxes, paper corners, honeycomb paperboard and other packaging materials. Products are exported to Japan, Southeast Asia, Europe, Oceania, the United States, Canada, more than 30 countries and regions.
DEQING TONGRUI CONSTRUCTIONS CO.,LTD. :Founded in 2007, it mainly produces shower rooms, jacuzzis, and bathroom furniture. It is also a leading designer of genuine faucets, towel bars, bathroom ceramics, and other toiletries. Has passed the ISO9001 quality system certification. Products cover all major cities in the country, but also exported to the United Kingdom, the United States, Russia, Germany and more than 20 countries and regions.
ZHEJIANG DEQING MULTI-SINOX PIGMENT TECHNOLOGY CO.,LTD. :Founded in 2009, it is a wholly-owned subsidiary of Dongkai Industrial which specializes in pigment production and deep processing. The company occupies an area of 35 acres, a total plant area of 20,000 square meters, a storage area of 8,000 square meters, with 500 square meters R & D center and 200 square meters quality inspection center, has five specialized production lines, annual production of colored iron oxide and organic and inorganic compound More than 20,000 tons of pigment. Specializing in the production of various pigment color powder, asphalt special pigments, paint special pigments, wood-plastic special pigments.

ZHEJIANG TRUSTCOLOR CHEMICAL INDUSTRY CO., LTD. :Founded in 2015, it mainly produces, processes and develops organic pigments, iron oxide series pigments, chrome yellow series pigments, pearl pigments and other inorganic pigments, and has established its own factories in Shanxi, Hebei, Hubei, Zhejiang and Anhui. Our products are widely used in building materials, concrete, paints, inks, coatings, leather, plastics and composite materials.

Zhejiang King-Can Opto Technology Co.,ltd. :Founded in 2017, it is a manufacturer of LED lighting and electronic scales integrating development, production and sales. And in a short time through the CE, FCC, EMC LU, ROUS, CCC, ISO9001: 2008 and other related certification.