More than 60 workers at the Juhui Footwear factory fainted on Friday.
200 workers from the Gawon Apparel Co blocks the road in Takhmao town.
Mondulkiri Provincial Labour Department deputy director Noy Chandara says he is not avoiding responsibility for delays in processing work permits.
Police arrest a labour department official over the disappearance of about $34,000.
US employers hired more than expected and raised wages, signs of labour market that clears way for Federal Reserve shrink bond portfolio.