WorkVenture gives you an inside look at what it's like to work at Sumi-Thai Fertilizer Co., Ltd., office & team photos, reviews and more. This is the Sumi-Thai Fertilizer Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Sumi-Thai Fertilizer Co., Ltd..Apply to rama productionApply to A DesignApply to control textileApply to Supalai