LONDON, June 16 (Reuters) - Britain’s government will extend a ban on evictions for businesses unable to pay their rent due to the coronavirus crisis until March 2022 from a previous expiry date of the end of this month, a junior finance minister said on Wednesday. “Existing measures will remain in place, including extending the current moratorium to protect commercial tenants from eviction to March 25, 2022,” Steve Barclay, chief secretary to the Treasury, told parliament. Reporting by William Schomberg and Alistair Smout, editing by David Milliken Our Standards: The Thomson Reuters Trust Principles.