Aircraft producer Boeing is eying potential sites in Poland to build a factory there to produce aircraft components, dpa cited the daily Puls Biznesu as reporting Tuesday. Representatives from the US company visited three locations around Poland earlier this month, the daily said, citing local special economic zone officials. The representatives were "key decision makers," which shows the company was serious about investing, the daily said. Boeing has not commented on building a factory in Poland. The company was to make a decision within several months, the daily said.