WorkVenture gives you an inside look at what it's like to work at Union Precision Assoctate Co., Ltd., office & team photos, reviews and more. This is the Union Precision Assoctate Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Union Precision Assoctate Co., Ltd..Apply to adpcApply to Possible Wealth Advisory ServicesApply to Thai DairyApply to Siam Cement