Golden Pass LNG , a joint venture between QatarEnergy and U.S. oil major Exxon Mobil , announced that its first liquefied natural gas cargo has departed the new Sabine Pass terminal in Texas. The vessel, Al Qa’iyyahal, left the port on Wednesday, though its destination remains unclear. The milestone comes seven years after construction began on the $10 billion plant, which will ultimately feature three processing units with a combined annual capacity of 18 million metric tons. Only Train 1 is currently operational, while Trains 2 and 3 are still under construction and are expected to come online once Train 1 has proven stable. Alex Savva, CEO of Golden Pass LNG , said in a statement, "As we advance toward full commercial operations, we are proud to have commenced supplying reliable U.S. LNG to the global market." Reuters reported that it was not immediately apparent where the first shipment was headed, adding that Italy had been cited as a possible recipient to offset LNG deliveries that QatarEnergy has been unable to provide due to the U.S.-Israeli war with Iran. Reporting by Curtis Williams and Sheila Dang in Houston; Editing by Nathan Crooks and Nia Williams