Technology giant Z Holdings Corp. is aiming to boost its services in Asia, co-chief executive officers Kentaro Kawabe and Takeshi Idezawa said in a recent interview. Z Holdings, which brought messaging app provider Line Corp. under its wing for business integration Monday, will also make efforts to discuss ethical issues regarding the use of artificial intelligence, they said. Z Holdings, the parent of internet portal Yahoo Japan Corp., will mainly aim to expand Line's Asia operations. "It's difficult to win a market share with a messaging app," said Idezawa, also Line's president. He expressed interest in developing and releasing a "superapp" that covers interactions, shopping and other services familiar to people in Indonesia, Thailand and Taiwan, where the Line app has already made inroads.