Private company
Wah Yan Hong Chemical Factory
華仁行化工廠是香港一家化工產品製造商，以生產成藥及殺蟲劑為主，產品除在香港銷售，也出口至東南亞及中國大陸等地。2 From the Chinese Wikipedia, CC BY-SA 4.0
Last updated Oct 21, 2026.
Sources
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