Area 4.075 km², elevation +415 to +1070 m, planned capacity 300 kt/year
This matter is progressing in line with the project stage; subsequent progress is subject to official updates.

The Mianchi Donggou barite mine is located in Nancun Township, Mianchi County, Sanmenxia City, Henan Province — about 10 km from G207 and 9 km from the S57 Expressway. The mining area covers 4.075 km² with a planned capacity of 300 kt/year. Total identified barite resources are 4.43786 Mt of ore and 4.07523 Mt of BaSO₄, and reserve expansion is currently in progress.
The project is situated roughly 31 km northeast of Mianchi County, Sanmenxia City, Henan Province, under the jurisdiction of Nancun Township. It is about 10 km east of G207 and 9 km west of the S57 Expressway, connected by a service road, with convenient transport and favorable mining conditions. The mining rights holder is Mianchi Haoyuan Mining Co., Ltd. In April 2026, Runxin Xingchi Mining (Henan) Co., Ltd. acquired an 80% stake. The mining license number is C4112002016116110143273, valid until April 18, 2027, covering an area of 4.075 km² with a planned production capacity of 300 kt/year. Total identified barite resources stand at 4.43786 Mt of ore and 4.07523 Mt of BaSO₄, and the company is now filing for reserve expansion with the Mianchi Natural Resources Bureau.
This matter is progressing in line with the project stage; subsequent progress is subject to official updates.
This matter is progressing in line with the project stage; subsequent progress is subject to official updates.
This matter is progressing in line with the project stage; subsequent progress is subject to official updates.
The Mianchi Donggou barite mine has completed an 80% equity acquisition. The current focus is on reserve-expansion and capacity-upgrade applications with the natural-resources authorities. Existing production systems remain stable; final capacity and mining boundaries are subject to approval outcomes.
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