There is a good supply of manual labour. The overseas seafarers are well represented by their union of the same name, however there is little in the way of union activity for casual labour on land. 

There is no rate for semi-skilled laborers, just a starting rate for skilled and unskilled casuals. The rates used by Public Works Department (PWD) depends on the type of work that they do.  

There is no minimum wage in Tuvalu, although the Department of Labour is in the process of organizing dialogues with partners to set two minimum wage rates, i.e., 1 for Government, the other for the private sector. 

For information on the Labour & Employment Relations Act you can find details here: https://tuvalu-legislation.tv/cms/images/LEGISLATION/PRINCIPAL/2017/2017-0014/LabourandEmploymentRelationsAct2017_1.pdf )