Site

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

ASC production

• Caustc soda/NaOH (Liquid & Solid)
• Vinyl Chloride Monomer/VCM (Liquid)
• Polyvinyl Chloride/PVC (Powder)
• Ethylene DiChloride/EDC (Liquid)
• Hydrochloric Acid/HCl (Liquid)
• Sodium Hypochlorite/NaClO (Liquid)

Energy Systems

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

Site Flow Chart

(Source: 2024, ASC Process Overview For Bidding - Rev)

Production Capacities

• 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]

References

1. ASC Company Profile, Detailed phase-by-phase capacity increases from 1989-2022.
2. Bisnis.com, 18^th Nov 2019, Factory Expansion in Cilegon, Asahimas Chemical Prepare Rp1.3 Trillion.
3. Industry.co.id, 2^nd Apr 2022, Ministry of Industry Appreciates Asahimas Chemical for Expanding Investment to Reach Rp1.5 Trillion in Cilegon.
4. ChemOrbis, 18^th Ar 2018, Asahimas Indonesia re-operating VCM No 2 unit.