Boeing Co (NYSE:BA, ETR:BCO) is facing more industrial headaches as unions reacted furiously to a new 30% pay offer described by the aeroplane maker as its ‘best and final’ offer.
More than 30,000 aircraft workers went on strike earlier this month after turning down a 25% pay rise offer.
International Association of Machinists and Aerospace Workers (IAM) officials said overnight that the latest offer was not negotiated with the union and “was thrown at us without any discussion".
IAM said Boeing sent the new offer directly to members without telling the union's representatives in a “blatant show of disrespect” to the bargaining process.
As a result, IAM officials said it would not hold a vote on the new offer, which Boeing wants ratified by 27 September.
"After listening to our employees and their concerns, Boeing today presented our best and final offer," the aircraft manufacturing giant said in a letter.
Workers who agree to the new deal will also see a signing bonus doubled to US$6,000.
Boeing told the BBC: "We have bargained in good faith with the IAM since formal negotiations began in March."
Workers at the US firm voted to strike on September 13 with 96% of those who voted backing the action.
As a consequence, other staff at the struggling business have been laid off temporarily or told to take furloughs for one week in four.