WorkVenture gives you an inside look at what it's like to work at SIN-SPI Engineering Co., Ltd., office & team photos, reviews and more. This is the SIN-SPI Engineering Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at SIN-SPI Engineering Co., Ltd..Apply to Thamada BangkokApply to Asia Business NetworkApply to MushroomApply to Franco Thai