At the forefront in Wales is the work being undertaken by Rhondda Cynon Taf County Borough Council, together with its service provider Wastesavers Charitable Trust Ltd.
Ar flaen y gad yng Nghymru y mae’r gwaith a wna Cyngor Bwrdeistref Sirol Rhondda Cynon Taf, ochr yn ochr â’i ddarparwr gwasanaethau Wastesavers Charitable Trust Ltd.