May 13 (Reuters) - Chilean industrial conglomerate

Empresas Copec said on Tuesday that the Chinese

market for its forestry products could become more challenging

if paper makers struggle to boost sales amid uncertainty over

U.S. tariff policies.

In Europe, meanwhile, uncertainty and concerns are growing

in the face of the possible implementation of new U.S. tariffs

and potential trade conflicts with other countries, a Copec

executive said in a presentation.