"I will not forgive anyone responsible for corruption," Park told a meeting of government officials in her first comment on the scandal that was triggered by the suicide of a powerful businessman.
Ordering a thorough and unlimited investigation, Park said it was her administration's responsibility to "root out corruption and complete political reform".
Sung Wan-Jong, the former head of a bankrupt construction company, hanged himself last week on a hillside near his house in Seoul.
Those listed in the memo included Prime Minister Lee Wan-Koo and presidential chief of staff Lee Byung-Kee.
Sung's apparent suicide came as he was about to be questioned by state prosecutors over allegations that he created a slush fund with embezzled company money to bribe politicians and government officials.
In a newspaper interview, Sung said he gave Prime Minister Lee 30 million won (USD 27,000) in cash in 2013 when he was running for a parliamentary seat.
Today, he repeated his denial, but apologised for the fallout from the scandal that has paralysed nearly all parliamentary work over the past week, with angry exchanges between ruling and opposition parties.
The main opposition New Politics Alliance for Democracy has demanded that Lee and other officials named in Sung's note resign.
The affair is a fresh blow to Park, whose popularity ratings were only just beginning to recover from the hit they took after the Sewol ferry disaster a year ago that killed 304 people.
A number of her nominees for senior posts have been forced to withdraw because of allegations of past misconduct.
The prime minister is a largely symbolic post in South Korea where power is concentrated in the executive.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
