An eco-centre in Machynlleth, Powys, has closed its cafe and vegetarian food store because of financial difficulties facing its trading arm.
Eleven workers in the Centre for Alternative Technology (CAT) Quarry Cafe and Quarry Shop have lost their jobs.
The stores were run by by CAT plc, which also operates a shop and restaurant on its Dyfi Valley site.
A CAT spokeswoman said those ventures were not affected.
She said the cafe and shop a few doors away were closed on Friday because of financial difficulties facing CAT plc, which in turn were fuelled by the economic downturn.