Chip toolmaker ASML, which makes equipment that plays a central role in chip production around the world, plans to raise prices, according to four people with knowledge of the discussions. That’s likely to bring ASML into conflict with Taiwan Semiconductor Manufacturing Co., the world’s biggest chipmaker and ASML’s largest customer, which recently complained about ASML’s high prices.

TSMC has already begun to push back against ASML’s pricing plans, said two of the four people. That highlights the growing tensions in the chip world as manufacturers try to balance the need to increase capacity with keeping a rein on costs.