Shandong TMMT Group known as State-owned JINAN GRANITE FACTORY, was founded in 1958. TMMT has been dedicating to develop and promote industrial uses of granite since we developed the first granite surface plate in China in 1978. Now TMMT is the largest manufacturer of granite precision measuring tools, precision components, precision guideway and machine frame in China.

Shandong TMMT Group known as State-owned JINAN GRANITE FACTORY, was founded in 1958. TMMT has been dedicating to develop and promote industrial uses of granite since we developed the first granite surface plate in China in 1978. Now TMMT is the largest manufacturer of granite precision measuring tools, precision components, precision guideway and machine frame in China.

TMMT has 300 employees and a black granite mine. we set up factories in Shandong Jinan (Headquarter) and Inner Mongolia, total factory area is more than 160000m2.. After years of development, TMMT builds the coordinated development strategy involving Granite Mining, Artificial Granite Manufacture, Precision Components and Guideway Production and Granite Precision Machine Center Manufacture.

Based on customer-centric concept, TMMT provides customized products and solutions using natural granite, artificial granite, ceramic and metal. We have been providing long-term services for customers in automation, aerospace, semiconductor, solar energy, FPD, industrial metrology, optical instruments, precision machining, laser, grinder, precision machine tools and other fields. With the zero-defect products quality target, we were certificated to ISO9001.

The artificial granite that self-developed and manufactured by TMMT, has more than 150% higher strength comparing to mineral casting or high-performance concrete. TMMT artificial granite can reach the same accuracy level as natural granite after machining and lapping, and without any needs of painting or coating on the surface, there is no pore and looks very close to natural granite.

TMMT focuses on environmental protection and social responsibility, and certified to ISO-14001 and ISO-45001. Over many years, TMMT has continuously invested in development of new materials and environmental protection equipment to reach zero-emission. TMMT has significantly reduced production waste and carbon emissions by recycling of filtered waste.

For more than 40 years, TMMT has been committed to development in the granite industry, constantly developing new materials and processes, and applying years of experience in production to the cooperation with customers, to fully understand customer needs. TMMT faces challenges and effectively solves problems to provide customers with better service.

TMMT looks forward to our win-win cooperation!