Bilfinger Berger has spoken out for the first time about the Edinburgh tramline row.
The dispute caused the project to be two years behind schedule and 40% over budget.
Dr Jochen Keysberg, a senior executive said the disagreement happened because of the way original client Transport Initiatives Edinburgh was interpreting the tram contract.
He said: “Maybe they were badly advised, maybe they just tried to pressure us in a certain position.
“This was frustrating, and if you have a completely different reading of the risk assessment in the contract, you cannot come together.”
Dr Keysberg also claimed that TIE was responsible for the increase in the cost of the project, which were caused by design changes and problems encountered during utility diversion work.
He was also adamant that the Edinburgh project turned out to be nothing like any project the company had encountered before, anywhere else in the world.