Haldia Petrochemicals aims to use more LPG as Iran war threatens feedstock supplies ↧ ↧ Haldia Petrochemicals aims to use more LPG as Iran war threatens fe... India's Haldia Petrochemicals is looking to increase liquefied petroleum gas substitution at its naphtha-fed cracker to as much ​as 30% to hedge against supply risks from the Middle ‌East due to the U.S.-Iran war, its chief executive said on Wednesday.