| 1978 | June | Incorporation of Malaysia LNG Sdn Bhd (MLNG) for liquefaction and marketing of LNG produced at Bintulu and commencement of MLNG Satu Project. |
| 1982 | August | Establishment of the Company for the smooth delivery of LNG from Malaysia. (100% owned by Mitsubishi Corporation (MC)) |
| December | Service Agreement for MLNG Satu Project signed between MLNG and JAMALCO. Completion of the liquefaction plant of MLNG Satu Project (3 trains) in Bintulu. | |
| 1983 | January | LNG Sales and Purchase Agreement between MLNG and Tokyo Electric and Tokyo Gas for 20 years duration as the first Sales and Purchase Agreement of all MLNG Projects. |
| February | LNG delivery from MLNG to Tokyo Electric and Tokyo Gas as the first delivery of all MLNG Projects. | |
| 1985 | March | Capital participation of PETRONAS Trading Sdn Bhd (PETCO), a Malaysian Company 100% owned by PETRONAS, Shell Kosan Kabushiki Kaisha (SHELL), now known as Shell Japan Ltd. 65% of 60,000 shares (increased from 20,000 in September 1984) transfer from MC to PETCO and 17.5% transfer from MC to SHELL based on Share Transfer Agreement between PETCO, MC and SHELL. (PETCO 65%, SHELL 17.5%, MC 17.5%) |
| 1992 | June | Commencement of MLNG Dua Project for the expansion of MLNG Projects with the additional liquefaction plant construction plan (3 trains) in Bintulu. |
| 1995 | February | Appointment of the Company by MLNG as the service provider to support MLNG Dua Project. |
| June | Share Transfer Agreement between PETCO, SHELL and MC in accordance with MLNG Dua Project commencement. (PETCO 70%, SHELL 15%, MC 15%) | |
| November | Commencement of MLNG Tiga Project for the expansion of MLNG Projects with the additional liquefaction plant construction plan (2 trains) in Bintulu. | |
| 1996 | January | Completion of the liquefaction plant of MLNG Dua Project (3 trains) in Bintulu. |
| 2002 | February | Appointment of the Company by MLNG as the service provider to support MLNG Tiga Project. |
| 2003 | October | Completion of the liquefaction plant of MLNG Tiga Project (2 trains) in Bintulu. |
| December | Share transfer of all the shares owned by MC and SHELL to PETCO based on the Share Transfer Agreement of March 1985. (100% owned by PETCO) | |
| 2004 | September | Reentry of MC and SHELL as the Company’s Shareholders in accordance the transfer of 7% each of issued shares from PETCO. |
| 2012 | January | Share transfer from PETCO to PETRONAS LNG Sdn Bhd(PLSB), a Malaysian Company 100% owned by PETRONAS due to PETRONAS group’s reorganization. |
| 2019 | November | Share transfer to and owned by PLSB 96% and MC 7% |