Basic Materials Sector: Beyond Metals & Minerals
- Muhammad Silvansyah Syahdi Muharram
- Jun 13, 2025
- 2 min read
Updated: Nov 27, 2025
The basic materials is one of the sector groups listed on the Indonesia Stock Exchange (IDX), comprising five industries.
Although there are five industries, the metals & minerals industry lead in terms of issuer count and drives the sectoral index most strongly. Key metals & minerals in this raw materials sector include:
Gold
Steel & Iron
Copper
Aluminum
Tin, Nickel, etc.
Other mining companies—such as those extracting oil & gas or coal—are classified under the energy sector. Many mining stocks serve as major catalysts for the overall IDX Composite Index (IHSG).
Key Facts About the Raw Materials Sector
Industries in the basic materials sector include:
Industries | Number of Issuers |
Metals & Minerals | 36 |
Chemicals | 30 |
Containers & Packaging | 20 |
Forestry & Paper | 14 |
Construction Materials | 13 |
Total | 113 |
The Basic Materials Sectoral Index (IDXBASIC) declined slightly in early 2025, but managed to jump 58.50% YTD as of October 31, 2025. Meanwhile, MTD, IDXBASIC increased by 1.70%.
As of October 2025, the average market capitalization of IDXBASIC constituents is IDR 20.82 trillion, with an average free float market capitalization of IDR 2.47 trillion. The constituent with the highest market capitalization on the index calculation is BRMS.
The basic materials sector plays an important role in the economy because it provides the materials needed by various industrial lines for the production of finished goods. Fluctuations in commodity prices, government policies, and other external factors can affect the performance of this sector.
Top 10 issuers of basic materials based on October 2025 index fact sheet:
Issuers | Industry |
BRMS | Metals & Minerals |
BRPT | Chemicals |
AMMN | Metals & Minerals |
MDKA | Metals & Minerals |
TPIA | Chemicals |
ANTM | Metals & Minerals |
MBMA | Metals & Minerals |
INKP | Forestry & Paper |
NCKL | Metals & Minerals |
INCO | Metals & Minerals |
Disclaimer: The content is made for educational purposes, not a recommendation to buy or sell a particular stock. PT KAF Sekuritas Indonesia is licensed and supervised by the Financial Services Authority (OJK).
Besides metals and minerals, which industries in the basic materials sector do you typically invest in?
Chemicals
Containers & Packaging
Forestry & Paper
Construction Materials
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