Tianjin Zhonghuan TCOA Electronics Co., Ltd. (TCOA) is a high-tech enterprise. Its predecessor is Tianjin Copier Equipment Company that a Tianjin state-owned enterprise that produces photocopiers and consumables. It is a vice-chairman unit of China Cultural Office Equipment Manufacturing Industry Association

The chairman unit of the Consumables and Spare Parts Manufacturing Branch is the main drafting unit of national and industry standards for a series of toner products and developing component products.

In 1985, Tianjin Copier Equipment Company introduced copier, OPC, toner production equipment and technology from Canon Japan, and realized the integrated production of copier, OPC, toner, and successively produced Canon