WorkVenture gives you an inside look at what it's like to work at Tnk Hokunku Trading Co., Ltd., office & team photos, reviews and more. This is the Tnk Hokunku Trading Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Tnk Hokunku Trading Co., Ltd..Apply to RittaApply to Ardent ServiceApply to TC DevelopmentApply to WV