WorkVenture gives you an inside look at what it's like to work at Sefco Chemical Group Co., Ltd., office & team photos, reviews and more. This is the Sefco Chemical Group Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Sefco Chemical Group Co., Ltd..Apply to ZilingoApply to Siam WellnessApply to ModernformApply to wv