Given the task definition and input, reply with output. In this task, you are given a sentence or phrase in Xhosa. You must translate it to English in a way that is equivalent in terms of meaning and grammatically correct.

Ukongeza apho ulwakhiwo kwamachiza awenze imichako ekrwada ebalulekileyo zenzelwa amasebe amaninzi oshishino lamachiza, ezinjengeplastiki, rabha noshishino lwesichumiso somhlaba
In addition their chemical composition makes them valuable raw materials for many branches of the chemical industry, such as the plastics, rubber and fertiliser industries.