Iran's two largest steel plants have been shut down due to multiple rounds of US-Israeli air strikes, the companies operating them say. Our initial estimate is that restarting these units will take at least six months and up to one year, Mehran Pakbin, deputy head of operations at the Khuzestan Steel Company in south-western Iran, was quoted as saying by Iranian media. Mobarakeh Steel Company said its production lines in the centre of the country had completely shut down following the high volume of attacks. The strikes, which Israeli media and Iran's foreign minister said were first launched by Israel in co-ordination with the US last Friday, could cause major damage to Iran's economy. Iran is the 10th biggest producer of steel globally, and any halt to production could have significant implications for supply chains and businesses, already affected by Western sanctions. The situation marks a considerable escalation in conflict, with reports of Israel targeting critical infrastructure linked to Iran's defense capabilities. Iranian officials have pledged retaliation, asserting that the strikes have targeted civilian facilities, including medical and research centers.