SunSirs: Driven by Crude Oil Prices, Methyl Ethyl Ketone (MEK) Prices Surge Over 100% in March

In March 2026, the methyl ethyl ketone (MEK) market experienced extreme volatility. According to SunSirs data, the benchmark price of MEK surged from 7,000 RMB/ton to 14,166.67 RMB/ton within the month, marking a monthly increase of 102.38% and making it the most closely watched “doubling commodity” in the chemical market. This surge was not driven by a single factor but rather resulted from the convergence of four core factors: cost-side resonance with crude oil, global supply contraction, domestic and international demand-driven hoarding, and market sentiment fueling the rally. It represents a classic “short squeeze” scenario in the chemical market.

I. The Deep Link Between MEK Raw Materials and Crude Oil (The Root Cause of Soaring Costs)

MEK is a core solvent product entirely dependent on the petrochemical industry chain; its raw materials, production, and costs are highly tied to crude oil. This is the fundamental reason why prices in this round have surged in tandem with oil prices.

1. Core Raw Material: C4 Fractions (Butene/n-Butane)

The mainstream domestic process employs the butene hydrolysis method (accounting for over 90% of production capacity): Crude Oil → Atmospheric and Vacuum Distillation → Naphtha/Light Hydrocarbons → Ethylene Cracking/Refining By-products → Mixed C4 → Separation and Purification → n-Butene/Mixed Butenes → Hydration to Form sec-Butanol → Dehydrogenation and Refining → MEK.

Some processes use n-butane as a feedstock (MEK produced as a by-product of the oxidation process), and n-butane also originates from C4 separation. C4 is a byproduct of refineries and ethylene plants; crude oil prices directly determine the cost of C4 feedstock. In March, Brent crude surged from $85 per barrel to $108 per barrel, driving C4 prices up from below RMB5,000 per ton to over RMB7,500 per ton, resulting in a direct increase of more than 40% in MEK production costs.

2. Supply Chain Transmission: Crude Oil → Naphtha → C4 → MEK

MEK is a downstream product of deep petroleum processing. The transmission path from crude oil to MEK is extremely short and highly sensitive:

- Rising crude oil prices → increased refinery processing costs → C4, as a refinery byproduct, sees its price rise in tandem with crude oil;

- Geopolitical conflicts in the Middle East (Israel’s strikes against Iran in late February) disrupted shipping through the Strait of Hormuz, affecting 30% of global oil trade. This not only drove up crude oil prices but also caused a disruption in imports of Middle Eastern C4 and MEK, creating a “rigid gap” in the raw material supply chain;

- Production side: MEK plants are energy-intensive chemical facilities; rising crude oil and natural gas prices simultaneously drive up energy costs, further exacerbating cost pressures on enterprises.

II. The Complete Logic Chain Behind the MEK Price Surge (Synergy of Four Major Factors)

1. Cost Side: Geopolitical conflict triggers a significant upward shift in the cost floor (core trigger)

- Crude Oil Surge: Tensions in the Middle East → Brent crude oil surpasses $108 per barrel → Costs rise across the entire petrochemical industry chain, with C4 and n-butane prices doubling simultaneously;

- Supply Chain Disruptions: Blocked shipping routes in the Middle East → Sharp decline in imported raw materials and MEK shipments; domestic enterprises face increased difficulty in procuring raw materials, creating a strong market expectation that “costs will only rise and never fall, and supplies could be cut off at any time”;

- Smooth Cost Pass-Through: MEK is an essential solvent; downstream industries such as coatings and adhesives have low cost sensitivity, and enterprises possess strong bargaining power, enabling them to quickly pass cost pressures on to the market.

2. Supply Side: Concentrated maintenance of domestic and international facilities has led to a spot market where “supply is scarce”.

- Domestic Spring Maintenance Wave: In March, leading domestic MEK producers such as Qixiang Tengda and Binhua Co., Ltd. conducted concentrated spring maintenance, causing the industry operating rate to drop below 55% and significantly contracting production capacity;

- Widening Overseas Supply Gap: Two large-scale MEK units in Japan underwent maintenance from February to April, while facilities in Taiwan and South Korea operated at reduced capacity, causing the supply gap in the Asian market to widen sharply;

- Inventories at Historic Lows: Since the beginning of the year, MEK producers have been continuously reducing inventories. In March, both market and corporate inventories reached historic lows. Leading producers are “overselling, holding back sales, and withholding quotes,” leaving spot market supply nearly depleted;

- China’s Global Pricing Power: China accounts for 70% of global MEK capacity. The contraction in domestic supply directly impacts the global market, further strengthening producers’ resolve to maintain prices.

3. Demand Side: Domestic Peak Season + Surge in Exports, Extreme Widening of the Supply-Demand Gap

- Explosion of essential demand during the domestic “Golden March and Silver April” period: Downstream industries—including coatings, adhesives, pharmaceuticals, and inks—have fully resumed operations. The spring construction peak season has driven concentrated restocking. To avoid material shortages, downstream buyers have passively accepted high prices, demonstrating extremely strong demand rigidity;

- Surge in export orders diverts supply: Amid overseas supply shortages, Chinese MEK export orders have skyrocketed. With export prices 1,000–1,500 RMB/ton higher than domestic prices, companies prioritize export fulfillment, further draining domestic market supplies;

- Downstream buyers are chasing rising prices to restock: The sustained price surge has triggered panic among downstream buyers, creating a positive feedback loop where “the higher prices rise, the more they buy; the more they buy, the more supplies run out.” Small and medium-sized traders and downstream enterprises are proactively stockpiling, further exacerbating spot market tightness.

4. Market Sentiment: Broad-based gains in the chemical sector + panic buying, leading to extreme price amplification

- The chemical market saw widespread gains in March, with the Business Society BPI Index rising sharply and a strong bullish sentiment prevailing; acetone, as the leading gainer, attracted significant capital attention;

- Suppliers hoarded inventory and were reluctant to sell, negotiating prices on a case-by-case basis. Market quotes were chaotic and continued to rise, with the single-day increase peaking at 18.06% (March 30), further fueled by speculative trading;

- Market concerns over geopolitical conflicts and supply disruptions continued to escalate, creating an expectation that “high prices are justified,” driving prices to surge rapidly away from fundamentals.

III. Key Risks and Market Outlook (April and Medium Term)

1. Short Term (1–2 Weeks): Volatility at High Levels; Prices Likely to Rise but Unlikely to Fall

- Supportive factors remain: Crude oil trading at high levels, domestic maintenance facilities not yet fully operational, sustained export orders, and low inventory levels, providing strong support from the cost and supply sides;

- Strong price resilience: Downstream demand remains robust; while acceptance of high prices has declined, there has been no widespread refusal to purchase. Prices are likely to remain in the high range of 13,500–15,000 RMB/ton in the short term.

2. Medium Term (1–2 months): Risk of a correction intensifies; be wary of a pullback from current highs

- Supply-side recovery: After mid-April, domestic MEK units undergoing maintenance will gradually resume production, and Japanese facilities are also scheduled to restart in May, rapidly narrowing the supply gap;

- Demand-side resistance: Following a doubling of prices, cost pressures on downstream sectors have intensified to the extreme. The coatings and adhesives industries have already seen reduced operating rates, scaled-back procurement, and heightened wait-and-see sentiment; the longer high prices persist, the higher the risk of downstream shutdowns and purchase refusals;

- Easing Cost Pressures: If geopolitical tensions in the Middle East ease and crude oil prices decline, C4 feedstock costs will fall accordingly, weakening the cost support for MEK;

- Inventory Buildup: As supply recovers and demand weakens, market inventories will rapidly accumulate from current low levels. The market will shift from “shortages” to “inventory drawdown,” making prices more prone to decline than to rise.

3. Key Risk Factors

- Geopolitical risks: Whether the situation in the Middle East escalates and whether crude oil prices can remain at high levels;

- Progress of plant resumption: Specific resumption timelines for leading domestic facilities such as Qixiang Tengda and Japanese facilities;

- Changes in downstream operating rates: Whether operating rates in the coatings and adhesives industries continue to decline and whether widespread shutdowns occur;

- Changes in export orders: Whether overseas acceptance of high prices declines and whether export orders shrink;

- Inventory Data: Whether social and corporate inventories are beginning to trend upward.

It is evident that the recent doubling of MEK prices within a single month is the result of an extreme convergence of four factors: “soaring crude oil costs + global supply contraction + aggressive buying driven by domestic and international demand + market sentiment fueling the rally.” At its core, this represents a “short squeeze” triggered by a supply-demand mismatch within the petrochemical industry chain under the impact of geopolitical conflicts.

In the short term, MEK prices will remain strong at elevated levels, but the risk of a mid-term correction has significantly accumulated. As supply gradually recovers, downstream resistance to high prices intensifies, and cost support weakens, MEK prices are likely to retreat from their highs between late April and May, gradually returning to a more rational range. For traders and downstream enterprises, it is currently essential to strictly control inventory levels and procurement pace, remain vigilant against the risk of a correction from current highs, and closely monitor three key indicators: plant resumption of production, downstream demand, and crude oil price trends.

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