August 27, 2026 - Spot liquidity's role in commodity price discovery has come into sharper focus as the seaborne metallurgical coal market continues to evolve.

Over the past several years, observable premium hard coking coal (PHCC) spot transactions in the Asia-Pacific seaborne market have declined significantly.

What was once a relatively concentrated market centered on Australian exports to North and Northeast Asia has turned into a more fragmented system characterized by shifting trade flows, growing regional diversity and changing procurement patterns.

The decline in observable spot transactions has prompted broader industry discussions about liquidity, transparency and benchmark formation.

Yet lower trade counts alone do not necessarily imply weaker price discovery. In a more fragmented market, the quality, visibility and breadth of market information may matter as much as the number of transactions themselves.

The more relevant question is whether the market continues to generate sufficient transparent and verifiable information to establish value.

Why observable coking coal spot trade liquidity has declined

The decline in observed PHCC spot transactions in Asia-Pacific has been driven by a series of structural changes.

China's restrictions on Australian coal imports between 2020 and 2022 disrupted traditional trading relationships and redirected significant Australian volumes to India, Europe and other Asian destinations.

Meanwhile, the adoption of advanced coke making technologies reduced reliance on PHCC while Mongolian coal consolidated its role in supplying Chinese demand and Russian cargoes expanded their presence across Asian markets.

Procurement has also shifted, with more steelmakers using longer-term supply agreements, index-linked contracts, and derivatives to improve supply certainty and manage price risk outside the spot market.

Weaker steel margins and greater blending flexibility have also pushed buyers to optimize costs across a wider range of coal qualities.

Together, these changes have reduced PHCC spot activity even as metallurgical coal demand and trade continue, creating a more fragmented, geographically diverse and interconnected market.

Why liquidity remains important in the coking coal market

The importance of spot liquidity should not be understated.

Spot transactions remain among the strongest forms of market evidence because they reflect agreed price levels between willing buyers and sellers under prevailing conditions.

A larger pool of observable trades strengthens confidence that benchmarks reflect broader market value and supports transparency for procurement, contracts and risk management.

As transaction volumes decline, market participants understandably look more closely at the foundations of price assessments.

At the same time, liquidity is not measured by trades alone. Firm bids and offers, expressions of interest, grade relationships, destination economics, and related physical and derivative market information can also help establish value when they are transparent, verifiable and representative — complementing observed transactions and contributing to an understanding of prevailing market value.

The challenge is therefore not simply how many trades occur, but whether sufficient observable market evidence exists to support robust and representative price discovery.

Fewer trades do not necessarily mean limited price discovery

Transaction volumes tell only part of the story.

While observable spot trades have become less frequent, the breadth of market information available to participants has, by contrast, continued to expand.

Platts data across metallurgical coal grades shows published market activity headlines have increased substantially since 2020, reflecting input from traders, steelmakers, coke producers, miners and end users across a broader range of markets and trade flows. Platts is part of S&P Global Energy.

This evolution highlights an important distinction: liquidity and transparency are related, but they are not the same thing.

In today's market, bids, offers and other observable activity can provide insight into how buyers and sellers view the market, even when no trade is concluded. Published in real time, this information allows participants to follow changing market conditions as they develop.

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