FOSHAN, China - Vacuum cleaners and vapes could get more expensive if the Iran war drags on for much longer, Chinese factory owners and traders warn, as the world’s manufacturing hub reels from “crazy” costs.

Weeks of US-Israeli strikes on Iran and the effective closure of the Strait of Hormuz have choked Asia’s oil supply, stymieing the production of plastic – derived from oil – across the region.

Manufacturing giant China has been comparatively sheltered from fuel shortages thanks to oil reserves and renewable energy, but local factories are picking up a ballooning raw materials bill.

“Basically, we’ve been losing money on all our orders,” said Mr Bryant Chen, a manager at vacuum cleaner factory RIMOO in southern Guangdong province’s Foshan.

The price of plastic has risen roughly 50 per cent since before the Iran war, Mr Chen told AFP as workers behind him fastened suction tubes to metal tanks.

“The costs of the products that we are making are being very greatly affected,” the 42-year-old said, listing plastic, copper for the vacuum’s motor and raw materials in its power cor...