Geopolymer and Ceramic Products - Coal Fly Ash Utilization in Non-Conventional Way

Source: S. K. Nath, T. C. Alex, R. Kumar & Sanjay Kumar - CSIR-National Metallurgical Laboratory, Jamshedpur

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The 10 largest coal producers and exporters in Indonesia:

1. Bumi Resouces
2. Adaro Energy
3. Indo Tambangraya Megah
4. Bukit Asam
5. Baramulti Sukses Sarana
6. Harum Energy
7. Mitrabara Adiperdana 
8. Samindo Resources
9. United Tractors
10. Berau Coal

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