1994
September
PT. Freeport Indonesia invited Mitsubishi Material Corporation to make PT. Smelting Project
1996
7 February
Establishment of Company
12 July
Earth Breaking Ceremony
1998
31 August
Completion of Construction
14 December
Trial Operation
1999
5 May
Start of Commercial Production (Design Capacity: 200,000 TPY)
2000
July
PT. Smelting obtain Industrial Business License
25 August
Opening Ceremony by The President of Republic of Indonesia
2001
10 July
Copper Cathode Registered to LME Grade A
2002
11 January
Obtain ISO 9001: 2000 Certificate
2004
15 April
Completion of Refinery 1st Expansion Work (Capacity : 255,000 TPY)
2006
August
Completion of Refinery 2nd Expansion Work (Capacity : 270,000 TPY)
2009
September
Completion of Refinery 3rd Expansion Work (Capacity : 300,000 TPY)
2014
September
Obtain ISO 14001:2004 Certificate
Obtained National Object Vital status from Industrial Minister
2017
November
Upgraded certification of ISO 14001:2015
2018
September
Obtained SNI 0030:2011 Sulfuric Acid
November
Completion of Smelter & Acid Plant Expansion Work (Cap. : 1.1 MTPY)
2019
January
Smelter Plant Expansion to 1,100,000 Tons of Concentrate/Year
21 May
As Bonded Zone Area
2020
May
Obtained ISPS (International Ship & Port Facility Security Code)
September
Obtained ISO 45001:2018 certification
2021
May
Change of shareholder : Mitsubishi Materials Corporation 60.5% and PT Freeport Indonesia 39.5%
December
Obtained Security Management System Certification
2023
December
Completion of 4th Expansion Work (Capacity : 342,000 TPY)
2024
30 June
Change of major shareholder : PT Freeport Indonesia 66.02% and Mitsubishi Materials Corporation 33.98%