ZURICH/LONDON, July 30 (Reuters) - UBS chief

executive officer Sergio Ermotti said on Wednesday that about

200 clients were affected by losses on complex foreign

currencies products sold by the bank.

The lender declined to disclose the amount of costs it has

set aside for the matter.

"For us the matter is closed," said Sergio Ermotti in a call

with reporters, adding that the cost for UBS was "not material."

(Reporting by Ariane Luthi in Zurich and Stefania Spezzati in

London; editing Anousha Sakoui)