Where to start
- You have a factory in mind
A friend recommended it, or you found it yourself. Check it first: we confirm which registered company it is and how it relates to your product, and answer your questions.
- You only know the product
No one has recommended a manufacturer, or the factory you checked is not right for you. We research the product and find the best Chinese manufacturers of it.
What you send us
- Product and grade
The product, its grade or specification.
- Monthly volume
How much you buy each month.
- Destination market
Where the goods will be sold.
- Certificates you need
For example Halal, Kosher, REACH.
What you get
A product report
- What it is and where it is used
- Global capacity and who makes it
- Manufacturers abroad and in China
- Strengths, weaknesses, reputation
- Sales channels and customers
- Export prices to main markets, last three years
- Who is cheapest and why
- Price trend and cost outlook
A shortlist of manufacturers
One to five Chinese manufacturers, each with its reasons and the evidence behind them. If none qualifies, we say so.
A report, up close
A sample product report: MDI (methylene diphenyl diisocyanate)
SampleResearch as of 14 Oct 2026
MDI is one of the main raw materials for polyurethanes. In China it is used mainly in refrigerators and freezers, adhesives and cars, and in TPU and shoe soles. Global capacity is about 10 million tonnes a year and highly concentrated, with more than half of it in China. Wanhua Chemical, in China, leads with 3.8 million tonnes a year; the main manufacturers abroad are BASF, Covestro, Dow and Huntsman. Demand grows about 5% a year; by a rough estimate, capacity is well above demand. Polymeric MDI in China averaged 15,751 yuan a tonne in 2025, 8% less than in 2024. China's exports grew for three years, to 1.2 million tonnes in 2024; exports to the US fell 77% year on year in January to April 2025, and in June 2026 the US issued an anti-dumping duty order on MDI from China. Wanhua has the price advantage, from scale, technology and integration.
Global capacity by manufacturer (thousand tonnes a year)
Capacity is highly concentrated: the five largest manufacturers hold more than 80% of it, and more than half is in China.
Approximate figures from public reports; sources count capacity in different ways and years.
Polymeric MDI price in China (yuan a tonne)
- Jan 2023 14,960
- Aug 2023 17,433
- Dec 2023 15,766
- Dec 2024 18,200
- Apr 2025 13,800
- Jul 2026 17,366
Prices reported in the months shown; the dashed line joins them and does not show the months in between.
The shortlist
| Manufacturer | Why it is on the list | What to check |
|---|---|---|
| Wanhua Chemical Group | The world's largest capacity (3.8 million tonnes a year) and a cost leader; it produces in Hungary and has a storage hub in Rotterdam, so it can supply Europe from closer by. | Trade-remedy risk in markets other than the US; the grade and packaging you need. |
| BASF (Chongqing) | 530 thousand tonnes a year in Chongqing (after the end-2024 upgrade). | Export quotas and pricing policy at foreign-owned plants in China. |
| Covestro (Shanghai) | Its Shanghai site is planned to grow to 1.26 million tonnes a year. | The timetable of the expansion (late 2020s). |
Sample report excerpt.
How we choose
- Confirmed manufacturer, not a trader.
- Capacity that fits your volume.
- Certificates that match your market.
- An export record.
- Registry and legal standing.
- No paid placement.
- Size alone is not a reason.
Start a request
Sign in to tell us the product you need.