Given a reference text about 341 George Street, Sydney, tell me when what companies had headquarters there.
341 George Street, Sydney is a heritage-listed bank building located at 341 George Street, in the Sydney central business district, in the City of Sydney local government area of New South Wales, Australia. It was built from 1927 to 1932 and housed the headquarters of the Bank of New South Wales, and later Westpac. It is also known as Westpac Bank building and Bank of NSW building. Westpac sold the building in 2002, but continues to lease the lower floors for use as banking chambers. The upper floors are leased by other tenants.

It was added to the New South Wales State Heritage Register on 2 April 1999. The building served as the Head Office for the Bank of New South Wales until relocated to 60 Martin Place in 1970.
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Westpac and Bank of New South Wales had their headquarters at 341 George Street, Sydney.
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