Mianchi potassium feldspar mineSite photo
Projects / Domestic Mining

Mianchi potassium feldspar mine

The Mianchi potassium feldspar mine is located about 25 km north of Mianchi County, Sanmenxia, Henan, covering 2.9707 km² (planned expansion to 4.6023 km²). Current output is 250 kt/year, with reserve expansion to 3.0 Mt/year underway and the site in the access-road construction stage.

Projects / Mianchi potassium feldspar mine
Overview

Starting from the current stage, continue to advance key priorities

The project site is currently in the access-road construction stage: loaders and construction crews are advancing temporary roads, slope support and drainage to open the transport channel for subsequent mining-area development and equipment mobilization. Total identified potassium feldspar resources amount to 8.10 Mt, comprising 4.33 Mt (332) and 3.77 Mt (333). The mine currently has seven open-pit faces and will gradually expand to ten as capacity ramps up. Exploration reports, reserve filing, development-utilization plans, safety assessments and government approvals are in place; work is proceeding on reserve expansion to 3.0 Mt/year and mining-area construction.

Current statusConstruction and procedures in progressUpdated August 2026
Business line
Domestic Mining
Location
Mianchi, Henan, China
Current stage
Construction and procedures in progress
Disclosed scale
Planned capacity: c.600kt/year
Current priorities

Advancing the next phase around confirmed matters

01

Access-road construction underway (site roads, slope support, drainage)

This matter is progressing in line with the project stage; subsequent progress is subject to official updates.

02

Related permitting processed in parallel

This matter is progressing in line with the project stage; subsequent progress is subject to official updates.

03

Mining-area construction prep after road completion

This matter is progressing in line with the project stage; subsequent progress is subject to official updates.

Project stage

Clear on where the project stands, without substituting concepts for progress

01Early assessment
02Permits, financing & development preparation
03ConstructionCurrent stage
04Operation & delivery
Disclosure

Access-road construction in progress, mining-area development proceeding in stages

The Mianchi feldspar mine is currently in the access-road construction stage, including construction roads, slope support and drainage works. Completion of this stage is a precondition for large-scale equipment and personnel entry and for subsequent mining-area construction and capacity release.

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