US bans some imports from N Korea, claiming slave labor

The US Customs and Border Patrol (USCBP), since December 5th, has been "detaining" imports from three major North Korean companies, over allegations of slave labor use, NewTalk KFLD reported.
The three companies import clothing, food, and auto parts
According to USCBP the three firms are Jingde Trading Ltd., Rixin Foods. Ltd., and Zhejiang Sunrise Garment Group Co. Ltd.  Jingde supplies auto parts, Rixin brings in a wide variety of items from sunflowers sees to nuts, and Zhejiang manufactures clothing. According to USCBP and the Wall Street Journal, the actions are taking place because of accusations of the use of slave labor in their manufacturing.
The imports will be detained until there is verifiable proof the goods were not manufactured utilizing slave labor, which has been an issue with both North Korea and China.