| Year | Detail |
|---|
| 1976 |
LOTTE Chemical Corp. was established in 1976 as Honam Petrochemical in South Korea. |
| 1979 |
Honam Petrochemical Corp. (now Lotte Chemical) was acquired by the LOTTE Group and completed its privatization through a stock transfer. |
| 1991 |
LOTTE Chemical Corp. (then known as Honam Petrochemical), a key subsidiary of the LOTTE Group, achieved a major milestone by going public and listing its shares on the Korean Stock Exchange. |
| 2003 |
LOTTE Chemical Corp. acquired the Hyundai Petrochemical 2nd Complex in Daesan, South Korea. This strategic acquisition significantly expanded Lotte's production capacity, enabling it to reach a Naphtha Cracking Center (NCC) capacity of 1 million tons for the first time in Korea. |
| 2006 |
The company signed an MOU to establish a joint venture (Daesan MMA Corp.) with Mitsubishi Rayon, Japan. |
| 2006 |
LOTTE Chemical Corp. acquired Daijin Chemical in China and renamed it to LOTTE Chemical Engineering Plastics (Jiaxing) Co. Ltd. |
| 2009 |
LOTTE Chemical merged with Lotte Daesan Petrochemical Corp. to strengthen its business, achieve economies of scale, and establish a unified global production base, particularly following the acquisition of Hyundai Petrochemical's second complex in 2006. |
| 2009 |
Lotte Chemical acquired Sambark Co., Ltd./Sambark LFT Co., Ltd. to strengthen its engineering plastics portfolio. |
| 2010 |
The company acquired DACC Aerospace Co. Ltd. to strengthen its business portfolio, specifically to expand into high-value-added materials and carbon composite technologies. |
| 2012 |
Honam Petrochemical officially merged with KP Chemical and rebranded as Lotte Chemical Corp. The merger was designed to integrate aromatics (PTA/PET) and olefins, aiming to strengthen competitiveness and secure new growth engines. |
| 2013 |
Ube Industries Ltd. and LOTTE Chemical Corp. established a joint venture company in Malaysia named Malaysian Synthetic Rubber Sdn. Bhd. (often referred to as Lotte Ube Synthetic Rubber or LUSR) to produce butadiene rubber (BR). |
| 2015 |
Axiall Corp. and Lotte Chemical Corp. had reached a final investment decision and signed a joint venture agreement to construct an ethane cracker plant in Lake Charles, Louisiana. |
| 2019 |
Lotte Chemical signed a joint venture agreement with GS Energy to invest $ 677 million in a new petrochemical project. |
| 2023 |
Lotte Chemical finalized the 2.7 trillion won acquisition of Iljin Materials, rebranding it as Lotte Energy Materials to strengthen its secondary battery materials business. |
