Ammonia gas leak at ice factory leaves 2 dead, 19 injured ...- sanitize factory at shah alam ,SHAH ALAM: Two workers died and 19 others were injured after an ammonia leak at an ice factory in Shah Alam, Selangor on Monday (Aug 13) morning.Ammonia gas leak at ice factory leaves 2 dead, 19 injured ...SHAH ALAM: Two workers died and 19 others were injured after an ammonia leak at an ice factory in Shah Alam, Selangor on Monday (Aug 13) morning.