1, in this case, the labor relationship of Hu et al. is the relationship between Hu et al. and the labor service company, but only the dispatching relationship with the construction company.

Therefore, the wages of Hu and others should be paid by the labor service company.

2. Labor service companies and construction companies have dispatch agreements. According to the agreement, the construction company should pay the labor service company the full amount equivalent to the wages of the dispatched personnel on time. It is against the agreement of both parties that the construction company defaulted on the money. According to the agreement, the labor service company has the right to recover money from the construction company.

This case involves two relationships: the labor relationship between Hu and the labor service company, and the labor dispatch agreement between the labor service company and the construction company. Hu needs to report complaints to the local labor inspection department as the first step and coordinate. If the coordination fails, he can file a labor arbitration according to law, and the arbitration object is the labor service company. After the labor service company pays wages, it can recover the money from the construction company.