Avingtrans, an AIM-listed manufacturer of critical components and associated services to the global aerospace, energy and medical sectors, announced that Sigma Components, part of its Aerospace Division, has signed a 10-year long-term agreement (LTA) with Rolls-Royce.The contact is valued at around £25m over its duration, based on the current predicted volumes. Under the agreement, Avingtans will become the sole supplier of pipe assemblies on one of Rolls-Royce's engine programmes. The firm said that in order to support the contract, it will invest in additional manufacturing capability at its facilities in the UK and China. Mark Johnson, Managing Director of the Aerospace division, said: "We are really pleased with the ongoing development with our biggest customer. This is the fourth LTA agreed with Rolls-Royce within the last 18 months having a combined value of over £180m."NR