Shots of construction of new polymer cracking unit, man climbing tower, asbestos insulators being lifted to tower top, fitted over pipes. Shot of welder welding oil tank. MLSs of labourers at work building new storage buildings for housing crude oil. Shot of cement being poured, joists being cut with acetylene torch, pipeline being laid in partially completed building. Several ESTABLISHING SHOTs of polymer plant at Sarnia showing new buildings under construction. Shot of new tanks being hoisted into place. Sequence showing pile driver hammering piles into place at Dow Chemical factory.