| Year | Detail |
| 1947 |
Founded as Lucky Chemical Co. Ltd. focusing on cosmetics. |
| 1951 |
Produced Korea’s first injection-molded synthetic resin products. |
| 1954 |
Completed the Yeonji Plant in Busan. |
| 1959 |
Established Lucky Oil and Fat Co. Ltd. |
| 1962 |
Established Lucky Vinyl Co. Ltd. |
| 1966 |
Set up Korea’s first synthetic detergent factory in Anyang Plant and renamed to Lucky Chemical Industries Co. Ltd. |
| 1979 |
Opened the Lucky Central R&D Center in Daedeok. |
| 1984 |
Acquired Korea General Chemicals’ Naju Plant. |
| 1987 |
Completed construction of the acrylate factory in Naju Plant. |
| 1995 |
Renamed to LG Chem. |
| 1996 |
Acquired India’s Hindustan Polymers Ltd. |
| 1998 |
Completed the Ningbo ABS plant in China. |
| 1999 |
Founded rechargeable battery, phosphor, and CCL factories in Cheongju Complex. |
| 2000 |
Acquired Hyundai Petrochemicals’ PVC business. |
| 2001 |
Divided the company into LGCI, LG Chem, LG Household & Healthcare. |
| 2005 |
Established a sales subsidiary in Europe and founded a joint R&D lab with Moscow State University. |
| 2006 |
Merged with LG Daesan Petrochemicals Co. Ltd. |
| 2008 |
Acquired Kolon’s SAP business. |
| 2010 |
Founded HL Green Power Co. Ltd., a joint venture with Hyundai Mobis. |
| 2019 |
Established VLBP, a joint venture with VinFast in Vietnam. |
| 2021 |
Established a PLA (Poly Lactic Acid) plant with ADM in the U.S. |
| 2023 |
Signed an MOU with China's Huayu Group to establish a plant in Morocco to produce LFP cathode materials. |