During excavation works in Chipping Norton, Greenline Excavations encountered soil containing large amounts of discarded copper cable and scrap fragments left from previous industrial activity. The metal was valuable but difficult to recover efficiently because it was buried within loose spoil and construction debris. Traditional approaches involved removing all the material from site and sorting it later, which required extra transport, labour and time. Much of the copper risked being missed or damaged during handling. The crew needed a way to separate copper scrap quickly while excavation was taking place, allowing them to recover the metal without slowing down the project.