In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

Cookworthy 's factory at Plymouth , 1768 , used kaolin clay and china stone .
Cookworthy 's factory at Plymouth , established in 1768 , used kaolin and china stone to make porcelain with a body composition similar to that of the Chinese porcelains of the early 18th century .