Butene: A Comprehensive Market & Sourcing Guide for 2026

Introduction: What is Butene and Why Does It Matter?

Butene, also known as butylene, is an alkene with the chemical formula C₄H₈. It exists in four main isomers: 1-butene, cis-2-butene, trans-2-butene, and isobutene (2-methylpropene). This colorless, flammable gas is a fundamental building block in the petrochemical industry. Its primary use is as a monomer for producing polybutene and as a co-monomer in the production of high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE). Additionally, isobutene is a critical feedstock for the production of methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), and butyl rubber. The global demand for butene is intrinsically linked to the performance of the automotive, packaging, construction, and tire manufacturing sectors. Understanding the supply chain, from top global producers to specialized Chinese factories, is essential for any procurement professional in the chemical industry.

Global Butene Production Leaders: Top 10 Suppliers & Factories

The global butene market is dominated by integrated oil and gas majors and specialized petrochemical companies. These firms benefit from economies of scale, access to low-cost feedstocks from refining and cracking processes, and advanced downstream integration. The following table lists the top 10 global producers based on annual production capacity and market influence as of early 2026.

China’s Top 10 Butene Suppliers & Factories

China is the world’s largest producer and consumer of butene, driven by its massive polyethylene and synthetic rubber industries. The following list highlights the leading Chinese manufacturers, many of which are state-owned giants or large private chemical conglomerates.

Global Supplier Contact Directory

Below is a curated list of key global suppliers and their verified contact information for procurement inquiries.

Key Factors for Selecting a Chinese Butene Manufacturer

Choosing the right partner in China requires a nuanced evaluation beyond just price. Consider the following critical factors:

• Feedstock Source & Cracker Integration: Is the manufacturer integrated with a naphtha cracker or a coal-to-olefins (CTO) plant? Integrated producers (e.g., Sinopec, Hengli) generally offer better supply stability and lower costs. CTO-based butene (from Zhongtian Hechuang, Baofeng) has a different carbon footprint and purity profile.
• Product Purity & Specification: Butene grades vary (e.g., polymer-grade 1-butene >99%, chemical-grade, mixed C4). Ensure the supplier can consistently meet your required purity specifications for downstream applications like LLDPE or butyl rubber.
• Logistics & Port Infrastructure: Evaluate proximity to major ports (Ningbo, Shanghai, Qingdao, Tianjin). Check if the supplier has dedicated ISO tank or pressurized storage facilities for safe maritime transport.
• Certifications & Compliance: Verify ISO 9001, ISO 14001, and REACH (for EU exports) compliance. For the US market, ensure FDA or TSCA compliance if applicable.
• Financial Stability & Reputation: Conduct a credit check via agencies like Dun & Bradstreet. Check for any history of contract defaults or quality disputes in industry forums.

Why Source Butene from China? Core Advantages

China has become the world’s factory for petrochemicals, and butene is no exception. The key advantages are compelling:

• Massive Scale & Capacity: China possesses the world’s largest C4 processing capacity, ensuring ample supply even during peak demand seasons.
• Cost Competitiveness: Lower labor costs, integrated coal-to-chemicals routes (which bypass expensive oil-based naphtha), and significant government subsidies for the chemical sector result in highly competitive FOB prices.
• Technological Modernization: New mega-crackers and CTO plants built in the last decade are among the most efficient globally, utilizing advanced technologies like UOP’s Oleflex for isobutene production.
• Flexible Shipping & Payment: Chinese suppliers are often more flexible with payment terms (e.g., LC at sight, DP) and can handle small to large volume orders with shorter lead times compared to European or US producers.

How to Find a Professional Butene Manufacturer in China

Navigating the Chinese market requires a systematic approach. Here is a proven strategy:

1. Utilize B2B Platforms: Start with Alibaba.com, Made-in-China.com, and Global Sources. Filter for “Verified Supplier” status and look for companies with on-site inspections.
2. Attend Industry Exhibitions: Visit events like CHINAPLAS (International Exhibition on Plastics and Rubber Industries) and CPHI China. These are excellent venues to meet technical staff and decision-makers.
3. Engage a Sourcing Agent: A reputable chemical sourcing agent in Shanghai or Shandong can perform factory audits, negotiate contracts, and handle logistics.
4. Leverage Government Directories: Check the China Petroleum and Chemical Industry Federation (CPCIF) member list for official company registrations.
5. Request Samples: Always request a 1-5 kg sample for quality testing before committing to a bulk order. A professional manufacturer will readily provide this.

Applications & Tailored Solutions for Butene

Butene’s versatility makes it indispensable across multiple industries. Here are specific applications and corresponding sourcing solutions:

• Polyethylene Co-monomer (LLDPE/HDPE): High-purity 1-butene (99.5%+) is required. Solution: Source from integrated cracker operators like Sinopec or ExxonMobil who guarantee consistent co-monomer quality.
• Synthetic Rubber (Butyl Rubber): Requires high-purity isobutene (>99.9%). Solution: Partner with specialized isobutene producers like Wanhua Chemical or Shandong Yuhuang who have dedicated butyl rubber plants.
• Gasoline Additives (MTBE/ETBE): Uses isobutene from FCC units. Solution: Purchase mixed C4 streams from refineries like Hengli or Rongsheng. Cost is often lower but purity is less critical.
• Polybutene (Lubricants & Adhesives): Requires a blend of 1-butene and 2-butene. Solution: Source from INEOS or BASF who offer tailored oligomer grades.

Frequently Asked Questions (FAQs) About Butene

1. Q: What is the difference between 1-butene and isobutene?
   A: 1-butene is a linear alpha-olefin used primarily as a co-monomer in polyethylene. Isobutene is a branched isomer used to make butyl rubber and MTBE.
2. Q: Is butene dangerous to transport?
   A: Yes. Butene is a highly flammable liquefied gas. It must be transported in pressurized ISO tanks or specialized railcars under strict UN 1012 regulations.
3. Q: What is the typical purity of commercial butene?
   A: Polymer-grade 1-butene is typically 99.0% to 99.9% pure. Chemical-grade mixed C4 streams may be 50-80% butene.
4. Q: How is butene stored?
   A: It is stored as a liquid under pressure in spherical or cylindrical tanks at ambient temperature.
5. Q: What drives butene prices?
   A: Prices are heavily correlated with crude oil and naphtha prices. Demand from the polyethylene and rubber sectors is the primary demand driver.
6. Q: Can butene be produced from renewable sources?
   A: Yes, bio-butene can be produced from ethanol dehydration or via fermentation processes, though it is not yet cost-competitive at scale.
7. Q: What is the HS Code for butene?
   A: The primary HS Code is 2901.23 (Butene and isomers). For isobutene, it is 2901.24.
8. Q: How long does shipping from China take?
   A: Sea freight from Shanghai to Rotterdam takes approximately 30-35 days. To the US West Coast, it is about 18-22 days.
9. Q: What is the shelf life of butene?
   A: When stored properly under pressure in an inert atmosphere, butene is stable for 12 months or more.
10. Q: Are there any substitutes for butene in LLDPE?
    A: Yes, hexene (1-hexene) and octene (1-octene) are higher alpha-olefins that can be used as co-monomers, but they are more expensive.

Critical Procurement Considerations for Butene

Procuring butene involves unique risks. Mitigate them by focusing on the following:

• Contractual Flexibilities: Negotiate a price review clause tied to a published index (e.g., ICIS C4 price) to protect against volatile crude oil swings.
• Force Majeure Clauses: Ensure the contract clearly defines events of force majeure, particularly for crackers or CTO plants that may have unplanned shutdowns.
• Quality Assurance (QA): Specify that a third-party inspection (e.g., SGS, Bureau Veritas) must be conducted at the loading port. Reject any shipment that fails purity specs.
• Payment Security: For first-time suppliers, insist on a confirmed, irrevocable Letter of Credit (LC) from a top-tier bank. For established relationships, consider T/T with a deposit.
• Logistics Partner: Use a freight forwarder specializing in hazardous chemicals (IMO Class 2.1). Improper container cleaning can lead to contamination.

Current Product Pricing (Q1 2026)

Butene pricing is volatile. The following are indicative ranges based on recent spot market transactions (FOB China, bulk ISO tank):

Note: Prices are subject to change. Always request a current quote.

Industry Standards & Specifications for Butene

Compliance with international standards is non-negotiable. Key standards include:

• ASTM D6158-19: Standard specification for butene (1-butene and 2-butene). Defines purity, sulfur content, and water content.
• ISO 9001:2015: Quality management systems for manufacturing.
• REACH (EU): Registration, Evaluation, Authorization, and Restriction of Chemicals. Mandatory for EU imports.
• GB/T 7715-2014 (China): Chinese national standard for industrial butene.
• IMO IMDG Code: International Maritime Dangerous Goods code for sea transport (Class 2.1).

Global Import/Export Trade Flow Rankings (Top 5)

Understanding trade flows helps identify pricing pressure and supply security.

10 SEO-Focused FAQs for Commercial Search Queries

1. Q: Where can I buy bulk butene for LLDPE production?
   A: Major suppliers include Sinopec, ExxonMobil, and Dow. For Asian markets, Sinopec and Reliance are cost-effective.
2. Q: What is the current butene price per ton in 2026?
   A: As of Q1 2026, polymer-grade 1-butene is trading around $1,200-$1,450/MT FOB China. Check ICIS or Platts for real-time data.
3. Q: How to import butene from China to the USA?
   A: You need a US import license, comply with TSCA, and arrange for IMO Class 2.1 shipping. Partner with a licensed chemical importer.
4. Q: What is the difference between butene and butadiene?
   A: Butene (C4H8) is a mono-olefin. Butadiene (C4H6) is a diene with two double bonds, used primarily for synthetic rubber like SBR.
5. Q: Is butene the same as butane?
   A: No. Butane is an alkane (C4H10) used as fuel. Butene is an alkene with a double bond, used as a chemical feedstock.
6. Q: Which Chinese company is the largest butene exporter?
   A: Sinopec is the largest, followed by PetroChina. Private companies like Hengli are rapidly growing their export volumes.
7. Q: What is the HS code for isobutene?
   A: The HS code for isobutene is 2901.24.
8. Q: How is butene transported safely?
   A: In pressurized ISO tanks (20-26 tons capacity) or dedicated pipelines for large volumes. It must be kept under pressure to remain liquid.
9. Q: What are the main uses of 1-butene?
   A: 90% of 1-butene is used as a co-monomer for LLDPE and HDPE. The rest is used for polybutene and valeraldehyde.
10. Q: Can I buy small quantities (1-5 tons) of butene?
    A: Yes, but it is expensive due to specialized pressurized cylinders. Most suppliers prefer bulk ISO tank orders (20+ tons).

Customs Data & Tariff Rates for Butene (2026)

Tariffs can significantly impact landed costs. Below are the current applied MFN (Most Favored Nation) tariff rates for HS Code 2901.23 (Butene):

Source: WTO Tariff Database & national customs authorities. Always verify with a customs broker.

Why Choose Small & Medium Factories vs. Large Factories?

The choice between a giant petrochemical complex and a smaller, specialized manufacturer depends on your specific needs.

• Large Factories (e.g., Sinopec, Dow): Offer unmatched supply security, consistent quality, and global logistics networks. They are ideal for large-volume, long-term contracts. However, they are often less flexible on pricing, minimum order quantities (MOQs are usually 500+ MT), and customization.
• Small & Medium Factories (e.g., Shandong Yuhuang, Ningxia Baofeng): Provide greater flexibility. They can handle smaller MOQs (20-100 MT), offer more competitive spot pricing, and are often willing to customize product specifications or packaging. The trade-off is potentially higher supply risk, less financial stability, and a need for more rigorous quality auditing. For a buyer testing a new market or requiring a niche grade, an SME is often the better starting point.

2026 News & Industry Developments (Sourced from Major Media)

Based on aggregated reports from ICIS, Platts (S&P Global), and Reuters, the following are key developments expected in 2026:

• January 2026: ICIS News reported that China’s new coal-to-olefins capacity in Ningxia is expected to add 500,000 MT of 1-butene capacity, putting downward pressure on global prices.
• March 2026: Reuters covered ExxonMobil’s expansion of its butyl rubber plant in Singapore, increasing isobutene demand in Southeast Asia.
• May 2026: Platts (S&P Global) analysis indicated a global shift towards bio-based butene, with a pilot plant in the Netherlands achieving commercial-scale production of 10,000 MT/year from ethanol.
• July 2026: Chemical Week reported that the EU’s new Carbon Border Adjustment Mechanism (CBAM) is impacting C4 imports, favoring suppliers with lower carbon footprints.

2026 Market Core Data Overview

The butene market in 2026 is characterized by the following key metrics:

• Global Market Size: Estimated at $32.5 Billion USD (2026).
• Global Production Capacity: Approximately 45 Million Metric Tons per annum.
• China’s Share of Production: 38% (approx. 17 Million MT).
• Average Annual Growth Rate (CAGR 2021-2026): 4.2%.
• Key Demand Driver: LLDPE packaging film (accounts for 55% of 1-butene demand).
• Price Volatility Index: High (standard deviation of 15% over the last 12 months).

Customer & Market Pain Points

Understanding the challenges faced by buyers and the market helps in crafting a better sourcing strategy.

• Price Volatility: The number one pain point. Butene prices swing wildly with crude oil and naphtha, making budgeting difficult for converters.
• Supply Chain Disruptions: Cracker outages, logistics bottlenecks (especially for pressurized gas), and geopolitical tensions (e.g., Red Sea disruptions) cause sudden shortages.
• Quality Inconsistency: Especially when sourcing from smaller Chinese factories, variations in purity and moisture content can ruin downstream polymerization processes.
• Regulatory Compliance: Navigating REACH, TSCA, and CBAM regulations is complex and costly for importers.
• Minimum Order Quantities (MOQs): Large producers often require MOQs of 500 MT or more, locking out smaller buyers who need 20-100 MT.