Quang Minh Unbaked Ceramic Company, Cao Bang.
In 2013, the additive is conducted experimentally at the factory of An Phu Mechanical Ltd. Company.
At that time, the soil hardening additive TS was put into production of non-baked bricks with the equipment of VINAM Company at Quang Minh Non-Brewing Material Factory of Cao Minh Co., Ltd.
Quang Minh Company Limited.
An Phu Mechanical Ltd. Company.
TS Polymer Ltd. Company.