Quarry Bay Gas Holder [c.1969-1986]
Probably built after closure of Taikoo Sugar Refinery. The gas holder is visible on an aerial photo from 1972 (found at the website of Hong Kong Map Service - free of charge only with limited resolution). On the image from 1963 (nearest older date) it's not there. Demolished, eaxact year of demolition unknown.
Update 2018-01-11:On HK Map Viewer , the gas holder is marked on the 1985 map, but not on the 1987 one. On this site, Westlands Centre was completed in 1988 (Source here). So the demolition date is set to January 1986.
Update 2018-09-06: Dates set to 1969-01-01 for completion, and 1986-06-01 for demolition (see comment below).