Site

Banten Factory

ASC PT Asahimas Chemical

Predominantly Chemicals Operations

42447

/ Cilegon

Jl. Raya Anyer Km 122

https://www.asc.co.id/index.php/en/

ASC is one of the largest integrated chlor alkali-vinyl chloride plant in South-East Asia.

Power Plant [Coal Firing]: Boiler —- Turbine — Generator; including internal steam network & power distribution to Receiving Station > PWP-1 & PWP-2
VCM Furnace [EDC Cracking]: Co-firing Natural Gas + Hydrogen > VCM-2 plant
Gas Boiler [Steam Generator]: Co-firing Natural Gas + Hydrogen; including steam network > Boiler-1 plant
Building: Office Building & Maintenance Workshop; electricity

Product

Capacity (tonnes/year)

Key Expansions

Caustic Soda

700,000

Phases 1-6 (1989-2016), including 200k ton addition in 2016^[1][2]

VCM

900,000

Phase 3 (1998: +250k), Phase 6 (2016: +400k), Unit 2 expansion (2018: +100k)^[1][4]

PVC

750,000

Phase 7 (2022: +200k), reaching current capacity from 550k tons^[1][3]

Caustic Soda
- 7 phases of expansion (1989-2016)
- Initial capacity: 130k tons (1989) → 700k tons after 2016 upgrades^[1]
- Utilizes 5 dedicated production lines based on phase documentation^[1]
VCM
- 3 major units:
  1. Unit 1: 250k tons (original)
  2. Unit 2: Upgraded to 350k tons in 2018^[4]
  3. Unit 3: 400k tons added in Phase 6 (2016)^[1]
- Total lines: 3, with Unit 2 being retrofitted for higher efficiency^[4]
PVC
- 4 production lines:
  1. Line 1: 70k tons (1992)
  2. Line 2: 125k tons (1998)
  3. Line 3: 250k tons (2016)
  4. Line 4: 200k tons (2022)^[1]