Mongolia Coal Exports Hit a Record, but Earnings Fell. Here’s Why

Mongolia’s coal exports hit a record of about 83.8 million tonnes (Mt) in 2024, according to the International Monetary Fund (IMF). In the same year, export revenue slipped and producer income came under pressure. Record shipments and record earnings are not the same thing, and the gap between them is easy to miss.

Mongolia is landlocked and sends more than 90% of its coal to China. Shipments have kept climbing in 2026: Chinese customs data cited by Reuters showed 39.37 Mt entering China in January-April. Mongolian national totals and Chinese customs figures are separate series, so they do not line up perfectly.

This piece gives you a working model of four variables that shape volumes: Chinese steel demand, the price discount against Chinese coal, border capacity and rail availability. It is analysis for information only, not investment advice.

Why one buyer dominates: the structure behind Mongolia’s coal export market

Geography looks like the whole story. Mongolia sits between China and Russia, and its southern coal mines sit far closer to Chinese steel centres than to any port. Look closer, though, and each layer of the system makes the next one harder to change.

One market, almost all the volume More than 90% of Mongolian coal exports went to China in 2024, a year worth about US$8.6 billion in exports, per the IMF.

Volumes reached roughly 89-90 Mt in 2025, although that estimate blends data series. Six conditions keep China at the centre:

1. Geography: landlocked, with only two neighbours offering market access.
2. Distance and cost: reaching India, Japan, Korea or Europe needs a long rail-and-sea chain.
3. Border ecosystem: specialised infrastructure built around one crossing.
4. Gauge: Mongolian track is 1,520 mm broad gauge; China’s is 1,435 mm standard gauge. Gauge is the distance between rails, and a mismatch forces coal to be moved between trains.
5. Pricing: low mining costs let Mongolian coal undercut some Chinese supply.
6. Limited alternatives: no other route operates at comparable scale.

How the border ecosystem reinforces itself

Gashuunsukhait, the principal coal gateway, handles about 40 Mt a year. Across the line, Ganqimaodu has grown into a dedicated coal hub with established buyers, customs routines, truck fleets and blending markets. Each new tonne shipped deepens that network, which makes the next tonne cheaper to send the same way.

Why alternative routes have not scaled

United Nations and World Bank transport analysis names Russia and China as the principal transit options, but identifies no large-scale Russian coal route. A regular stream through Tianjin or other Chinese ports was not found in available research either, so the evidence here is thin.

Compare Australia, which the International Energy Agency (IEA) identifies as the largest metallurgical coal exporter at about 153 Mt, selling to diversified buyers through deep-water ports. For you, the takeaway is that Mongolia’s concentration risk is built into its infrastructure: shifts in Chinese demand pass almost straight through to Mongolian volumes.

That single-buyer dependence extends beyond coal: copper and coal each supply roughly two-fifths of export value, and one border crossing carries more than half of coal and copper concentrate volumes.

Rail, roads and border gates: what limits how much coal can move

If China is the destination, the corridor decides how much arrives. Follow it from mine to border, and the difference between building track and moving coal becomes clear.

The rail build-out

The Tavan Tolgoi line was finished in 2022, yet cross-border connections and terminal arrangements have kept it from full use. The cross-border link was put at about 65% complete in a report on 18 October 2026, and its capacity depends on which authority you ask. That 10 Mt discrepancy is worth checking against primary sources.

Dual gauge is not a full fix The cross-border line carries both gauges to cut repeated transloading. Terminals, bridges and customs coordination still have to work, and none follows automatically from laying track.

Why trucks still matter

Roads still carry heavy tonnage at Gashuunsukhait, exposed to congestion, border hours, weather, axle limits, transloading and Chinese customs capacity. Autonomous truck pilots have no confirmed commercial capacity, cross-border conveyors have no published operating capacity, and the Khavirga-Zuunbayan link’s operational status is unclear. Treat all three as items to monitor.

The read for you: announced capacity is a ceiling, not a forecast. When you see an infrastructure headline, ask which constraint is actually binding.

For readers weighing rail, royalty and ownership rules together, our full explainer on mining in Mongolia covers the 2027 gauge-break railway and the 34% strategic deposit cap.

Why volumes and income diverge: prices, cost advantage and Chinese demand

Even full trains do not settle the earnings question. The price data shows why.

What the price data shows

The Asian Development Bank (ADB) put it plainly: more coal, less money in 2024. Mongolian Mining Corporation shows the same split at company level, selling 10.1 Mt in 2025 against 8.6 Mt a year earlier while revenue fell to US$823.4 million from US$1.04 billion.

Why Chinese buyers keep sourcing from Mongolia

GF Futures, cited by S&P Global in June 2026, estimated Mongolian mining costs at roughly RMB50-150 a tonne below major Shanxi producers. The advantages stack up:

• Proximity to Chinese steel mills
• Low mining costs
• Compatibility with Chinese blending needs
• No long seaborne freight leg

JinSong Tang, head of coking coal at JSL Global Commodities, told S&P Global that Mongolian coal had become a core part of China’s coking coal blend. The IEA’s mid-year update on 11 September 2026 linked rising purchases to safety closures in Shanxi and projected exports to China of about 91 Mt. Wood Mackenzie pointed in July 2026 to continued mill demand for low-sulphur coal.

S&P Global Commodity Insights links the expected rise in Chinese imports to sustained cost advantages and tighter domestic supply after safety inspections, with Mongolian coal valued as a cost-efficient blending component.

The counterweight is price. Dulguun Baasandavaa, acting CEO of the Mongolian Stock Exchange, said prices were unlikely to regain 2021-24 highs given weaker steel sales and rising Chinese supply. No Mongolia-specific Chinese quota or tariff change was identified. Tonnage alone misleads you; the cost gap and Chinese supply conditions matter just as much.

Cyclical rebound or structural exposure? How the energy transition debate applies

All of this leaves a bigger question hanging. Is the 2026 rebound a cycle or a reprieve?

Two ways to read the 2024-26 numbers

• Cyclical: prices, steel margins, Shanxi inspections and border conditions explain the swings, and the IMF, ADB, Wood Mackenzie and IEA have all leaned on these drivers.
• Structural: the IEA expects global coal trade to weaken as Chinese import needs decline, leaving Mongolia exposed to how China’s steel industry evolves.

The distinction that sharpens this debate is coal type. Mongolian exports mostly feed steelmaking (metallurgical coal), so solar and wind displace them less directly than thermal coal burned for power. The longer-term variable is lower-carbon steel: more scrap use, electric-arc furnaces and hydrogen-based reduction.

Global steelmaking restructuring, from scrap-fed electric-arc furnaces to hydrogen-based reduction, is the slow-moving variable that could turn today’s cyclical swings into a lasting decline in metallurgical coal demand.

Fiscal, community and diversification pressures

Scenario, not forecast World Bank analysis from 2024 found a severe reduction in Chinese coal demand could cost up to 20% of Mongolian GDP.

Mining supplies about one-fifth of government revenue, per the World Bank’s Public Finance Review of 30 June 2025, and the IMF puts coal at roughly 20% of fiscal revenue in 2024. Governance concerns around state companies and border brokerage add to that volatility. In the South Gobi, dust, congestion and water demands persist, with no quantified 2025-26 community-impact assessment found.

Diversification is under way but early. Global Energy Monitor reports a proposed Borteeg expansion on a block with about 424 Mt of reserves and at least 15 Mt a year of output, while washing, processing and OECD renewable-hydrogen work continue. No binding large-scale Indian purchase agreement was found, and Indonesia still ships far more coal to China. For you, the transition question comes down to the pace of change in Chinese steelmaking and the depth of Mongolia’s fiscal buffers.

Four variables to track when reading the next Mongolia coal headline

Volumes rest on Chinese steel demand, the price discount, border capacity and rail availability. Rail raises the physical ceiling, but it does not remove single-buyer, price or fiscal risk.

Chinese steel demand also drives iron ore pricing, so margins at mills that blend Mongolian coking coal tend to move in step with the wider ferrous complex that shapes how much they can pay for inputs.

Indicators worth following:

• Monthly Chinese customs data
• Gashuunsukhait-Ganqimaodu test operations, expected around April 2027
• Chinese steel margins
• IMF and World Bank price and fiscal updates

When the next record tonnage figure lands, weigh it against price, border and demand signals before reading it as strength.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions. Projections cited are subject to market conditions and various risk factors, and figures should be checked against primary sources.