Investor Presentaiton

Favorable Industry Dynamics High Barriers to Entry Proven track record and strong reputation Term contracts High capital investment Strong ties with local communities Delta Dunia High Cost of Contractor Switching Long transition downtime High opportunity cost Loss of mine site knowledge Strong Coal Demand Rising Coal Prices Falling Coal Prices Unique Positioning BUMA Lack of Well Capitalized, Reputable and Technically Proficient Contractors New Contracts from Existing and New Customers Increase in Coal Price ■ Mine owners may accelerate production to capitalize on high prices, subject to fleet constraints Marginal coal deposits become profitable Indonesia as Lowest Marginal Cost Producer, Formula-Based Pricing and Term Contracts Continued strong coal demand Fixed coal volumes as specified in the long-term sales contracts Less impacted than other coal producing countries due to cost competitiveness Source: BUMA Company Data 24

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