2019

05

• Awarded ‘the 22nd Korea Logistics Grand Prix’ (Contributing to driver welfare by Netruck house business)

03

• Ranked No.1 in the oil industry of ‘Korea Brand Power Index(K-BPI)’ for 21 consecutive years

2017

08

• Decision to buy petrol wholesale business from SK networks

2015

12

• Received the KISA President's Award at the 14th K-ICT Information Security Awards

09

• Chosen as the best company in terms of donations for education

2013

07

• The Incheon Complex spun off its trading division

05

• EnClean.com obtained a web accessibility certification mark for the first time in the oil industry

01

• SK energy received a certification from the President of Korea as the best company in creating employment

2012

12

• Received the "USD 20 Billion Export Tower" award on Trade Day
• SK gas stations were top ranked in 3 major customer satisfaction surveys (KCSI, KKS-SQI and NCSI)

05

• Made a large-scale PX facility investment in the Incheon Complex

2011

01

• The oil business was spun off and it took the brand name 'SK energy'

2010

10

• Held a completion ceremony for the Jeungpyeong plant (completion of the production line for LiBS 4 & 5 and a ground-breaking ceremony for the TAC/FCCL production line)

07

• Chosen as a supplier of high-speed electric car batteries for Hyundai Kia Motors

06

• Held a completion ceremony for SK's LNG plant in Peru

2009

10

• SK lubricants was established with its entire shares owned by SK innovation

2008

07

• Held a completion ceremony for SK's lube base oil plant in Indonesia

02

• Completed merger with SK Incheon Oil

2007

07

• Split into a holding company (SK Inc.) and an operating company (SK Energy Co., Ltd.)

04

• Signed a joint management agreement on the plastic compound business with Hyundai EP

02

• Held a ground-breaking ceremony for SK's lube base oil plant in Indonesia

01

• Formed a strategic partnership with Nippon Oil Corporation. Signed a strategic partnership for global business using ACO technology

2006

10

• Held a Board of Directors' meeting in Dubai which is the center of the global crude oil market

09

• Completed preparation for advancing into the hybrid-car battery market

08

• Joined an exploration project in Kazakhstan

06

• Newly joined an exploration project in Madagascar

04

• Created a firm basis to maintain its top ranking in the global premium lube base oil market

02

• S&P upgraded the credit rating of SK Co., Ltd. to BBB-

01

• Began an LNG project in Peru in full-scale

2005

12

• Signed an agreement to take over Incheon Oil

11

• Held a joint ceremony celebrating the completion of environment-friendly and ultra-low sulfur fuel oil production unit

08

• Was chosen as the winner of the 6th Internal Audit Awards

07

• Exported the APU technology which was developed for the first time in the world

06

• Was chosen as one of the best companies in terms of corporate governance in 2005

2004

10

• Established SK China Holding Company

09

• Held a completion ceremony to celebrate the second lube base oil plant

07

• Launched corporate-wide voluntary service group

05

• Held a ground-breaking ceremony for the second-phase of the Ulsan Grand Park

04

• Announced New SK and improved SKMS

2003

12

• Joined the Gwangyang LNG thermal plant (the first privately-developed commercial power plant in Korea) construction project with British Petroleum

11

• Commenced crude oil production at Su Tu Den oilfield of sector 15-1 in Vietnam in which SK has an equity stake

2002

08

• Held a retirement ceremony for the atmospheric distillation tower, which was built as the first of its kind in Korea

07

• Successfully issued SKT shares in overseas securities market

04

• Opened the first phase of Ulsan Grand Park

2001

12

• Launched a telematics business and a pilot service

05

• Confirmed the market potential of crude oil developed in sector 15-1 in Vietnam

2000

07

• Sold a technology for depression medicine (YKP10A) to Johnson & Johnson in the U.S

01

• Opened OKCashbag.com, the largest hub site in Korea

1999

07

• Sold an epilepsy treatment-related technology

03

• Launched OK Cashbag service, which is a loyalty program that gives customers loyalty points as well as discounts

1997

10

• Changed the company name from Yugong to SK Co., Ltd

06

• Established a local corporation for oil field development (SK E&P Company)

03

• Started the second manufacturing unit for synthetic resins (320,000 tons produced per year)

01

• Started the second desulfurization unit (60,000 barrels produced per day) and cracking unit (50,000 barrels produced per day) for heavy oil

1996

10

• Started the fifth atmospheric distillation unit (240,000 barrels produced per day with the total production capacity at 810,000 barrels produced per day)

07

• Initiated commercial production of crude oil from Sector 8 in Peru

1995

09

• Started the fourth hydrogenation and desulfurization unit for kerosene and diesel (50,000 barrels produced per day)

1994

11

• Initiated crude oil production from North Zaafarana, Egypt

06

• Acquired 20.2% of stocks and management right of Korea Mobile Telecom Co., Ltd

1992

05

• Started the first desulfurization (30,000 barrels produced per day) and cracking (30,000 barrels produced per day) unit for heavy oil

1991

05

• Started the fourth commercial distillation unit (200,000 barrels produced per day)

1990

08

• Started the first synthetic resin manufacturing unit (250,000 tons produced per year)

1989

12

• Started the second naphtha cracking unit (400,000 tons produced per year)

1988

01

• Started to import crude oil from Marib, Yemen

1987

05

• Started a grease manufacturing unit (3,000 tons produced per year as of now)

1985

12

• Started a new aromatic-compound manufacturing plant (400,000 tons produced per year)

11

• Increased the production capacity of oil-refining units by improving atmospheric distillation units (345,000 barrels produced per day)

05

• Merged Korea Petroleum Holdings

1982

07

• Changed the brand name from Korea Petroleum Corporation to Yugong

1980

12

• Sunkyung Co., Ltd. acquired the management right of the company according to the government's privatization policies

08

• Korea Petroleum Holdings Co., Ltd. acquired 50% of the stocks that had been owned by Gulf

03

• Expanded the lubricant oil mixing plant (4,500 barrels produced per day as of now)

1978

03

• Expanded the naphtha cracking center (155,000 tons of ethylene per year)

1976

07

• The Korea Development Bank sold its shares to Korea Petroleum Holdings Co., Ltd

1974

06

• Expanded the second atmospheric distillation unit (110,000 barrels produced per day)

1973

03

• Started a naphtha cracking center (100,000 tons of ethylene produced per year)

1972

10

• Started the third atmospheric distillation unit (105,000 barrels produced per day)

09

• Completed the installation of long-distance oil pipeline between Ulsan and Daegu

1970

05

• Gulf acquired 50% and the management right of Korea Petroleum Corporation
• Started an aromatic compound manufacturing plant (216,000 tons produced per year)

1968

12

• Started a lubricant oil mixing plant (550 barrels produced per day)

04

• Started the second atmospheric distillation unit (60,000 barrels produced per day)

1967

05

• Expanded the first atmospheric distillation unit (55,000 barrels produced per day)

1964

04

• Started the first atmospheric distillation unit (35,000 barrels produced per day)

1962

10

• Established Korea Petroleum Corporation, the first oil refinery in Korea