| This article has been updated for Kenshi version 0.98.36. |
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The Stone Processor requires too much manpower, we need to improve the design so we can get more output with less workers.
— In-game description
Stone Refinery Upgrade is Industry Tech which unlocks some improved versions of the Stone Processor.
Players who create a lot of Building Materials, either for construction or trade, should consider doing this research for their outposts.