BofA China Energy Weekly: Coal safety regulation may tighten further after the coal mine accident

Overview

This report is BofA Securities' weekly update on China's energy sector, covering coal, oil and gas, natural gas, energy storage, refining, and chemicals. The core event is that after the gas explosion at a coal mine in Qinyuan County, Changzhi, Shanxi on May 22, 2026, widespread local coal mine shutdowns and grid-based inspections may drive further tightening of coal safety regulation. Meanwhile, crude oil prices fluctuated amid expectations around negotiations, the recovery of Russian exports, and inventory changes; refining margins fell sharply, and petrochemical prices declined along with crude oil.

Core views

In coal, post-accident suspension inspections increased short-term supply disruption risk. The timing of production resumption in Qinyuan remains uncertain, but most other suspended mines are expected to resume after completing 3-5 days of self-inspections. On prices, QHD thermal coal was flat, NEWC edged up slightly, and Liulin No.4 coking coal fell. In oil and gas, Brent and WTI declined significantly on the week. Supportive factors included the deadlock in U.S.-Iran talks and a decline in U.S. crude inventories, while suppressing factors included slight progress in negotiations, extension of Russian crude waivers, and the recovery of Novorossiysk exports. In natural gas, Henry Hub and TTF fell sequentially, while JKM and China's CIF LNG strengthened. In energy storage, BESS tendered capacity still grew year over year but fell month over month, battery cell prices rose slightly, and PCS prices were flat. In refining and chemicals, refining margins fell sharply from April, independent refinery utilization remained weak, and petrochemical product prices and some spreads weakened.

Analysis framework

The report uses a weekly high-frequency tracking approach, comparing coal prices, oil prices, gas prices, inventories, daily consumption, refinery utilization, tendered capacity, equipment prices, and chemical spreads on both a sequential and year-over-year basis, while incorporating safety accidents, regulatory inspections, geopolitics, refined oil price adjustments, and import/export data to assess short-term changes in energy-chain conditions.

Methodology notes

• High-frequency industry trackingWeekly monitoring of prices, inventories, and utilization

  Use coal prices, oil prices, gas prices, inventories, daily consumption, refinery utilization, and chemical spreads to measure conditions across the energy chain.

  The report compares week-over-week and year-over-year changes and explains price fluctuations in conjunction with policy, accident, and geopolitical events.

• Event-driven analysisSafety regulation and supply shock assessment

  The pace of shutdowns, self-inspections, and resumptions after coal mine accidents affects coking coal and thermal coal supply.

  The report focuses on tracking the capacity scale and uncertain resumption timing of 25 coal mines in Qinyuan and other suspended mines in Shanxi.

• Cross-category comparisonEnergy commodity chain linkage

  Changes in crude oil, natural gas, refining, petrochemical, and energy storage prices affect the industrial chain through costs, demand, and margins.

  The report compares upstream energy prices, refining margins, and downstream chemical spreads simultaneously to identify transmission of conditions within the chain.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• China coal and coking coal

  Core asset in the report; accidents and tighter regulation directly affect supply.

  Strengths

  Suspension inspections may cause phased supply contraction, and NEWC still trades at a 23.5% premium to QHD.

  Weaknesses

  Port and power plant inventories are rising, daily consumption at six major power plants is falling, and demand-side support is limited; Liulin No.4 coking coal prices fell on the week.

  Comparison

  QHD prices were flat week over week, NEWC rose slightly, and Liulin No.4 coking coal fell, showing divergence across coal grades and regions.

  Risks

  Resumption timing, regulatory intensity, and demand changes are all uncertain and may lead to rapid price reversals.

• Crude oil and oil and gas

  As the upstream pricing benchmark for the energy chain, it affects refining costs and market risk appetite.

  Strengths

  The deadlock in U.S.-Iran talks, uncertainty related to Hormuz, and declining U.S. inventories support oil prices.

  Weaknesses

  Brent and WTI fell significantly on the week, while the recovery of Russian exports and the extension of waivers pressured oil prices.

  Comparison

  The WTI discount to Brent widened from US$3.8/bbl to US$6.9/bbl, indicating relative weakness in U.S. crude.

  Risks

  Geopolitical news, sanctions waivers, and the recovery of Russian exports may quickly change supply-demand expectations.

• Natural gas and LNG

  Used to measure divergence in global gas prices and changes in China's import costs.

  Strengths

  JKM and China's CIF LNG prices rose week over week, showing stronger Asian gas pricing.

  Weaknesses

  Henry Hub and TTF fell week over week, reflecting short-term pressure on U.S. and European gas prices.

  Comparison

  JKM rose 50.7% year over year, TTF rose 34.7% year over year, and Henry Hub fell 12.8% year over year, highlighting clear regional divergence.

  Risks

  Weather, inventories, LNG cargo flows, and regional demand changes may intensify price volatility.

• Energy storage and batteries

  Covers BESS tendered capacity, prices, and weekly battery cell/PCS prices.

  Strengths

  BESS awarded capacity in April 2026 increased 8% year over year, and weekly battery cell prices across multiple specifications rose slightly.

  Weaknesses

  BESS awarded capacity fell 35% month over month, tender prices remain low, and PCS prices were flat.

  Comparison

  Battery cell prices improved slightly, but the average awarded prices for BESS and EPC show that the industry chain remains in a competitive environment.

  Risks

  Price competition, volatility in tendering pace, and divergence in overseas inverter exports may affect profitability.

• Refining and petrochemicals

  Measures midstream and downstream conditions through refining margins, utilization rates, feedstock prices, and downstream spreads.

  Strengths

  Average refining margins in 2026 remain above 2025, and state-owned refinery utilization has held at 67% for three consecutive weeks.

  Weaknesses

  May refining margins fell sharply from April, Shandong independent refinery utilization declined, and petrochemical product and MDI prices generally fell.

  Comparison

  Naphtha, ethylene, propylene, LLDPE, PP, and MDI all declined on the week, and the PP-propylene spread turned negative.

  Risks

  Lagged impacts from crude oil prices, refined oil price adjustments, lower utilization, and weak chemical demand may compress margins.

Key data

• Coal mine accident and suspended capacityAt least 82 deaths; 25 coal mines in Qinyuan with 25.6 million tons/year suspended; 73 suspended coking coal mines in Shanxi totaling 78.9 million tons/yearFollowing the gas explosion at a coal mine in Qinyuan County, Changzhi, Shanxi on May 22, 2026, local authorities will conduct grid-based inspections across the coal industry.
• QHD 5,500kcal coal priceRMB834/ton, flat week over weekAs of May 22, 2026, the Qinhuangdao benchmark thermal coal price remained stable.
• Port and power plant inventoriesPort inventory 23.83 million tons, +1.9% week over week; inventory at six major power plants 12.9 million tons, +0.7% week over week; daily consumption 739.7 thousand tons, -2.1% week over weekRising inventories and falling daily consumption indicate that short-term demand support is not strong.
• NEWC 6,000K coal priceUS$132.05/ton, +0.3% week over week, 23.5% premium to QHDOverseas coal prices still maintain a clear premium relative to the China benchmark.
• Liulin No.4 coking coal priceRMB1,620/ton, -1.2% week over weekCoking coal prices still posted a weekly decline despite regulatory supply disruptions.
• China coal imports33 million tons in April 2026, -13% year over yearCoal imports declined year over year, which may affect assessments of domestic supply-demand balance.
• Crude oil pricesBrent US$103.5/bbl, -5.2% week over week; WTI US$96.6/bbl, -8.4% week over weekIn the week ended May 22, 2026, the WTI discount to Brent widened to US$6.9/bbl.
• U.S. crude oil inventories819 million barrels, -18 million barrels week over weekIn the week ended May 15, 2026, the inventory decline was one supporting factor for oil prices.
• Natural gas pricesHenry Hub US$2.91/mmbtu, -1.8% week over week; TTF US$16.41/mmbtu, -4.2% week over week; JKM US$18.81/mmbtu, +10.0% week over weekNatural gas prices diverged by region, with Asian JKM strengthening while U.S. and European benchmarks retreated.
• China CIF LNG import priceUS$14.1/mmbtu, +26.9% week over week, flat year over yearIn the week ended May 17, 2026, import LNG prices rose sharply on a sequential basis.
• Energy storage tendersChina BESS awarded capacity was 32.6GWh in April 2026, -35% month over month and +8% year over year; average awarded prices for BESS and EPC were RMB0.65/Wh and RMB1.069/WhTendered capacity grew year over year but fell month over month, while prices remained low.
• Battery cell and PCS prices50/100/280/314Ah battery cells at RMB0.426/0.413/0.336/0.358/Wh; 215KW, 2500KW, and 1725KW PCS at RMB0.091/0.065/0.07/WBattery cell prices moved slightly higher, while PCS prices were basically flat on the week.
• Refining marginUS$11.3/bbl in May 2026 versus US$31.5/bbl in April; 2026 average US$19.8/bbl versus US$10.1/bbl in 2025Monthly refining margins fell significantly, but the 2026 average remains above 2025.
• Refinery utilizationShandong independent refineries 52.5%, -1.1 percentage points week over week; state-owned refineries 67%, flat for the third consecutive weekIndependent refinery utilization remained low, while state-owned refineries stayed stable.
• Petrochemical prices and spreadsNortheast Asia naphtha US$915/ton, -10.5% week over week; ethylene US$1,101/ton, -6.8% week over week; propylene US$1,231/ton, -1.2% week over weekThe LLDPE-ethylene spread turned positive to US$32/ton, while the PP-propylene spread moved from US$8/ton to - US$8/ton.
• MDI pricesEast China m-MDI RMB23,100/ton, -2.9% week over week; p-MDI RMB17,800/ton, -3.0% week over weekMDI prices continued to decline on a weekly basis.

Impact & implications

For investment judgment, the key variable in the coal chain is short-term supply tightening caused by stricter safety regulation and suspension inspections, but rising inventories and declining daily consumption limit price elasticity. The oil and gas chain is simultaneously affected by geopolitics and supply recovery, making short-term direction unstable. The energy storage chain still faces low tender prices and sequential demand volatility, and whether the slight battery cell price increase is sustainable remains to be seen. The refining and chemical chain faces margin pressure amid falling crude oil prices and weaker spreads, and attention should be paid to refined oil price adjustments and utilization changes.

Risks

• The pace of production resumption at Shanxi coal mines and the intensity of safety regulation are uncertain, potentially causing volatility in coal and coking coal supply.
• Changes in China's power demand, port inventories, daily consumption at six major power plants, and hydropower inflows may weaken support for coal prices.
• U.S.-Iran talks, policies related to the Strait of Hormuz, Russian exports, and sanctions waivers may repeatedly alter the direction of oil prices.
• Regional divergence in natural gas prices may be disrupted by weather, inventories, and LNG cargo flows.
• If energy storage tender prices and battery cell prices continue competing at low levels, industry-chain margins may be squeezed.
• Weaker refining margins and chemical spreads may affect midstream and downstream profitability.
• This report is an industry weekly update and does not provide buy or sell recommendations for individual securities; it should be considered together with company fundamentals, valuation, and risk tolerance.

What to watch

• The resumption timing of 25 coal mines in Qinyuan County and other suspended mines in Shanxi, as well as the scope of safety inspections.
• Price changes in QHD 5,500kcal, NEWC 6,000K, and Liulin No.4 HCC.
• North + South port inventories, inventories at six major power plants, and daily consumption.
• U.S.-Iran talks, policies related to the Strait of Hormuz, and the recovery of Russian Novorossiysk exports.
• Henry Hub, TTF, JKM, and China's CIF LNG import prices.
• BESS awarded capacity, EPC quotations, and battery cell and PCS prices.
• The refined oil price adjustment on June 4, 2026, and utilization rates at Shandong independent refineries and state-owned refineries.
• Prices and related spreads of naphtha, ethylene, propylene, LLDPE, PP, and MDI.