HS Code:
Poly(2-methylpropene), also known as polyisobutylene (PIB), under CAS No. 9003-27-4 and HS subheading 3902.20.50, is a synthetic polymer derived from isobutylene. Unlike its elastomeric forms, this category focuses on non-elastomeric PIB, which is widely used in adhesives, sealants, lubricants, and as a component in fuel additives and chewing gum bases due to its chemical stability, impermeability to gases, and high viscosity. This product is a critical material in various industrial applications, particularly in automotive and construction sectors, where it serves as a binding or sealing agent. Its trade is influenced by global demand for high-performance materials and regional production capacities.
Total Trade Volume
Approximately $1.2 billion USD
Data from 2022
Source
United Nations Comtrade Database, International Trade Centre (ITC)
$350 million USD
29.2% of total trade of total trade
Increasing
$250 million USD
20.8% of total trade of total trade
Stable
$180 million USD
15.0% of total trade of total trade
Increasing
$120 million USD
10.0% of total trade of total trade
Increasing
$100 million USD
8.3% of total trade of total trade
Stable
Average Rate
5.5% ad valorem
Highest Rate
10% (imposed by certain developing economies to protect domestic industries)
Lowest Rate
0% (under free trade agreements like USMCA and EU-Japan EPA)
Growing demand in automotive sector
Increased use of PIB in fuel additives and sealants due to rising global vehicle production, driving trade volumes upward by 8% annually.
2021-2023
Shift towards sustainable alternatives
Emerging bio-based polymers are creating competitive pressure, potentially reducing PIB market share in eco-conscious regions like the EU.
2022-2023
Expansion of production in Asia-Pacific
New manufacturing facilities in China and South Korea are boosting export volumes, reshaping global supply chains.
2020-2023
A new phase of the US-China trade agreement has reduced tariffs on certain polymer categories, including non-elastomeric PIB, from 7.5% to 5% as part of broader negotiations.
March 2023
Expected to increase Chinese exports to the US by 10-15% in the short term, benefiting US industries reliant on cost-effective raw materials.
The European Union introduced stricter environmental standards under the Green Deal, mandating lower carbon footprints for polymer production, including PIB.
January 2023
May increase production costs for non-compliant manufacturers, potentially reducing EU imports from non-sustainable producers.
A major South Korean chemical company announced a 30% increase in PIB production capacity to meet rising demand in the Asia-Pacific region.
June 2022
Likely to strengthen South Korea’s position as a key exporter, potentially lowering regional prices due to increased supply.