Mongolian Mining Corporation Operational Update for the Quarter Ended 31 March 2026

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MONGOLIAN MINING CORPORATION
(Incorporated in the Cayman Islands with limited liability)
(Stock Code: 975)

OPERATIONAL UPDATE
FOR THE QUARTER ENDED 31 MARCH 2026

HONG KONG, April 16, 2026 (GLOBE NEWSWIRE) — The board of directors (the “Board“) of Mongolian Mining Corporation (the “Company“, together with its subsidiaries, collectively the “Group“) wishes to announce the unaudited operational update for the quarter ended 31 March 2026. The comparative figures for the quarter ended 31 March 2025 and the quarter ended 31 December 2025 are also disclosed in this announcement (if and as applicable).

The Company is the largest internationally listed private mining company with operations focused on and located in Mongolia. The Group has consolidated a diversified business portfolio to develop and operate coking (metallurgical) coal, gold, silver, copper, and other non-ferrous metals mining assets in southern and western regions of Mongolia.

Coking (metallurgical) coal operations

The Group is the largest producer and exporter of washed coking coal products in Mongolia. Energy Resources LLC (“ER“), its wholly-owned subsidiary, operates the Ukhaa Khudag (“UHG“) coking coal mine, and Khangad Exploration LLC (“KEX“), the Group’s majority-owned subsidiary, operates the Baruun Naran (“BN“) coking coal mine, both located in Umnugobi aimag (province), Mongolia.

The main operational data for the Group’s coking (metallurgical) coal operations that comprising combined output delivered by ER from the UHG mine and by KEX from the BN mine for the quarter ended 31 March 2026 are summarised in Table 1 below.

Table 1. Main operational data for coking coal operations for the quarter ended 31 March 2026: