What about the Institute of Mineral Engineering under Beijing Institute of Mining and Metallurgy?

The Institute of Mineral Engineering is in a leading position in the preparation of complex and refractory reagents in China, and has undertaken many national key projects and won many scientific and technological achievements and awards, such as "Shizhuyuan Method", which has achieved good demonstration and economic benefits.

If you are a mineral processing agent, this should be the best choice. Now that you are hiring, it is estimated that it will be over before the end of the year. If you are interested, you should hurry up. The competition is quite fierce.