President Moon Jae-in made a commitment Thursday to complete prosecution reform and other measures aimed at promoting social justice this year, addressing a meeting with business leaders and representatives from various fields.

He vowed "clear change" for South Korea on the basis of what he says is a number of achievements made during his presidency that began in May 2017.

"'The reform of powerful institutions' and 'fair society reform' are the beginning (of the process)," he said during the event held at the Korea Chamber of Commerce and Industry headquarters in Seoul.

In South Korea, usually four state organizations -- the prosecution, police, state intelligence agency and national tax service -- are called powerful institutions.

In particular, reforming the prosecution service, said to have excessive power and authority, is one of the hottest topics.

"No powerful institution can exist above the people," Moon stressed.

Only when everyone is actually equal and fair by law, "social trust" can be formed, which will serve as the basis for "co-prosperity and national unity," he said.

"I won't stop legal and systemic reform until powerful institutions gain the trust of the people," he added.

He urged them to take the initiative for self-reform on their own, stating, "As the president elected by the people, I will exert all of my authority in accordance with the Constitution."

Apparently mindful of criticism and skepticism over his reform drive, Moon said, "It's very hard to change the big frame of state affairs, but it is a way (we) must go."

He assured the people of an unrelenting push to enhance fairness in the country, calling it a driving force behind innovation and growth.

"We still have a long way to go for 'fair society reform'" to meet the standards of the people, but the government will attain it at any cost, he said.

On the Korean Peninsula issue, Moon pledged efforts to "widen room to maneuver" in inter-Korean relations. (Yonhap)