South Korea and Japan Are Switching Gas for Coal Fast Enough to Move the LNG Market

South Korea and Japan Are Switching Gas for Coal Fast Enough to Move the LNG Market Japan's extra coal burn displaced roughly four LNG cargoes in April — about half the annual import cut its green policy was meant to deliver. Japan and South Korea, two of the world's largest LNG importers, sharply increased coal-fired power generation in April and early May as the war involving Iran disrupted LNG supplies and pushed prices higher.³ The shift has a measurable size. Japan's increased coal generation displaced roughly four LNG cargoes in April, about half the annual reduction in imports the government had expected from its green policy, according to ICIS.³ That matters because it is a real volume leaving the gas market, not a forecast. The trigger was physical: the disruption knocked out around 17% of LNG export capacity in Qatar, the world's second-largest LNG supplier, pushing prices to levels that make coal the cheaper option for utilities.³ Every cargo these buyers decline because they are burning coal instead is gas that stays in the seaborne market, a near-term bearish weight on Asian LNG even as the headlines read as a supply crisis.³ South Korea has gone beyond switching at the margin. The government abolished the spring-time regulatory cap that historically limited coal-fired plants to 80% capacity, freeing those units to run flat out when LNG is scarcest.¹ It has also ramped nuclear reactor utilisation to as much as 80% to pre-empt supply risks.¹ Both moves substitute cheaper or domestic generation for imported gas, and both reduce the call on LNG that Korea would otherwise make.¹ The exposure driving these decisions is structural. South Korea draws 70% of its oil and 20% of its natural gas from the Middle East, the region the war has thrown into disruption.² A country that dependent on Middle Eastern energy, facing a 17% hit to a key LNG supplier, has every incentive to lean on whatever it can generate without buying another cargo.^3,2 This is why the near-term picture for Asian LNG is more bearish than the crisis framing suggests, and it is the tension a trader has to hold. The war is bullish for gas through lost Qatari supply, but the response from these buyers pulls the other way.³ If the coal switch is large and persistent, it caps how high prices can run even with Qatar offline, because the marginal buyer keeps choosing coal over an expensive cargo.¹ The signal to watch is whether South Korea and Japan keep displacing cargoes at the April pace or reverse course.³ If they keep substituting coal and nuclear for gas, LNG demand stays suppressed and the price spike is capped.¹ If the war eases and Qatari supply returns, the demand they have parked snaps back, and these buyers re-enter the market for cargoes alongside everyone else. The four cargoes Japan skipped in April are the live gauge of which way it breaks.^3,2