INALUM Drives Emissions Reduction and Leading Environmental Innovation

The company's commitment to environmental management includes reducing the impact of conventional air emissions and Greenhouse Gases (GHG). CDM (Clean Development Mechanism) is a mechanism for reducing GHG emissions involving both developed and developing countries. INALUM is one of the industries in developing countries (Indonesia) that is voluntarily engaged in its implementation.

For implementing the CDM, INALUM received an international award related to carbon credit from LRQA in 2012. In addition, based on the 2022 LME Passport-Sustainability Disclosures, PT INALUM is categorized into range one, 0-4 tonnes CO2-e/MT of aluminum products.

INALUM'S GHG EMISSION

Emission Intensity Scope 1 and 2

Emission Intensity Scope 1, 2 and 3

 Note:

• Scope 1 emissions consist of direct emissions from stationary combustion (use of B30 biodiesel, LPG, and natural gas), direct emissions from mobile combustion (use of biodiesel and pertalite for transportation), direct emissions and absorption from industrial processes (Prebake CO2 from electrolysis and combustion furnace volatile oxidation, soda ash consumption, PFC emissions), direct emissions leaked from GHG emissions in anthropogenic systems (use of air conditioning and fire extinguishers).
• Scope 2 emissions consist of indirect emissions from imported electricity (electricity from hydroelectric power plants and PLN).
• Scope 3 emissions from business travel by BOD and BOC.
• The GHG emission calculation table above includes: CO2, CH4, and N2O.
• GHG emissions calculations in this report refer to the following references:
  
  GWP100 values and atmospheric lifetimes based on AR6 WGI (IPCC), 2019, which updates the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Greenhouse Gas Inventory Guidelines, Direct and Indirect Emissions from Refrigeration, Air Conditioning, Fire Protection, and Industrial Gases (United States Environmental Protection Agency Environmental Protection Agency, 2014), IPCC Guidelines for National Greenhouse Gas Inventories, 2006, Decision of the Director General of Oil and Gas No. 486 K.10/DJM.S/2017, Decision of the Director General of Oil and Gas No. 146 K.10/DJM/2020, GWP100-AR6 SM7, Emission Factors for CO2: Director General of the Electricity System in 2019, EF Source: Ecometrica (2011). Specific Emission Factors for Grid Electricity, EPA. 2013, Default CoM Emission Factors for Member States of the European Union, 2017 Dataset Version, https://www.icao.int/environmental-protection/Carbonoffset. 

Sustainable Practices for a More Climate-Resilient Future

In 2021, INALUM will implement a superior program for reducing emission loads, namely the program to use LNG fuel as a substitute for LPG. This innovative program is based on an LCA study conducted by an independent party that aims to reduce the GWP impact of the resulting emissions. This innovation was first implemented in Indonesia in the (Metal Processing) Sector or, according to the 2017-2020 Best Practice from the Ministry of Environment and Forestry, has never been implemented in the (Metal Processing) sector.