Weekly Data Analysis of Sample Inventory at Jiangsu Styrene Ports (September 14, 2026)

1. Trend Analysis of Styrene Port Inventory in Jiangsu

As of September 14, 2026, the total sample inventory at styrene ports in Jiangsu stood at 34,300 metric tons (mt), a decrease of 3,000 mt from the same period last week (-8.04%). The commercial inventory was 18,300 mt, down by 3,500 mt from the previous period (-16.06%).

Weekly Comparison of Total and Commercial Sample Inventory at Jiangsu Styrene Ports

Data Source: Chempricehub Information

2. Trend of Sample Inventory vs. Product Price

For the week of September 14–20 (7 days), barring any sudden disruptions to market sentiment, incoming vessel shipments of styrene are expected to increase during this period. Downstream demand is projected to remain stable, with port withdrawals maintaining a steady pace. Overall, it is anticipated that supply from incoming vessels will slightly exceed withdrawal volumes, leading to a modest build-up in styrene port inventory in Jiangsu for the coming week.

3. Trend of Sample Inventory vs. Product Price

During the week of September 7–13 (7 days), domestic arrivals weakened. The total volume of styrene arriving via ships, pipelines, and trucks into social inventories in Jiangsu was 21,000 mt, compared to 21,000 mt over the same 7-day period last year. Withdrawals during this period totaled 24,000 mt, compared to 38,500 mt last year.

As of the morning of September 14, the total sample inventory at Jiangsu styrene ports continued to decline, registering a year-on-year drop of 78.43%. Current port inventory data indicates that stocks are 101.76% higher than the lowest point recorded since 2022, but 86.68% lower than the highest peak since 2022. Based on current figures, inventory levels are situated in the low range compared to the same periods over the past five years (2021–2025).

Sample Description:

The styrene port inventory data for Jiangsu provided by Chempricehub Information represents real-time inventory statistics collected every Monday. It is primary statistical data covering inventory figures from 13 terminal storage enterprises in the Jiangsu region.

Term Definitions:

1. Jiangsu Port Inventory: Refers to the physical inventory in public warehouses or tanks located at ports within the Jiangsu region, including both bonded and non-bonded facilities.
2. Jiangsu Port Commercial Inventory: Refers to the portion of inventory in public port warehouses in Jiangsu excluding raw material stocks held by downstream styrene consumers.
3. Regions Included in Jiangsu Port Inventory: Nantong, Changzhou, Jiangyin, Zhangjiagang, and Changshu.

Standardized Release Schedule:

Chempricehub Information releases its styrene port inventory data for Jiangsu between 11:00 AM and 12:00 PM on Mondays (business days).