Lead:
From January to May, cumulative DINP exports increased by 80.5% year-on-year, reaching a total of 38,900 tonnes. In May alone, exports exceeded 10,000 tonnes, marking the highest single-month level in recent years. Imports, meanwhile, remained at very low levels, with a cumulative volume of less than 200 tonnes.

I. Overview of Import and Export Data

In May 2026, China’s DINP imports stood at 229.74 tonnes, down 50.3% month-on-month and 49.23% year-on-year. Cumulative imports from January to May reached 1,850.26 tonnes, up 59.92% year-on-year. Domestic DINP production increased slightly, while imports continued to remain at low levels.

In May 2026, China’s DINP exports increased significantly, with a single-month volume of 10,923.52 tonnes, up 29.74% month-on-month and 243.72% year-on-year, setting a new monthly record. Cumulative exports from January to May reached 38,900 tonnes, an increase of 80.51% year-on-year.

II. Export Structure Analysis

From January to May, Chinese DINP exports were shipped to 48 destination countries and regions. Among the top 15 destinations, total export volume reached 35,200 tonnes, accounting for 90.49% of total exports.

The top export destination was Russia, with a volume of 10,876.31 tonnes, accounting for 27.94%. Second was Vietnam, with 3,872.51 tonnes (9.95%), followed by Thailand with 3,646.82 tonnes (9.37%), and Japan with 2,882.08 tonnes (7.40%).

Table: DINP Export Volume by Registration Place (January–May) (tonnes, USD, USD/tonne)

| Customs District | Volume (tonnes) | Value (USD) | Average Price (USD/tonne) |
|------------------|-----------------|-------------|---------------------------|
| Guangdong | 15,869.05 | 19,111,462 | 1,204.32 |
| Shandong | 8,356.763 | 10,408,377 | 1,245.50 |
| Jiangsu | 7,135.678 | 8,140,982 | 1,140.88 |
| Zhejiang | 4,482.725 | 5,834,000 | 1,301.44 |
| Henan | 2,499.28 | 3,256,325 | 1,302.91 |
| Shanghai | 287.5 | 421,535 | 1,466.21 |
| Tianjin | 157.85 | 195,057 | 1,235.71 |
| Anhui | 47.50 | 69,151 | 1,455.81 |
| Liaoning | 46 | 69,210 | 1,504.57 |
| Hebei | 30.23 | 43,130 | 1,426.73 |
| Fujian | 12.9 | 31,826 | 2,467.13 |
| Shaanxi | 8 | 16,880 | 2,110.00 |
| Total | 38,933.476 | 47,597,935 | 1,222.55 |

Notably, Guangdong ranked first in shipment volume, accounting for 40.76%, followed by Shandong at 21.46%, and Jiangsu at 18.33%.

III. Trend Forecast

1. Influencing Factors

In May, domestic DINP production in East China increased, intensifying regional competition. Differences in raw materials led to product quality variations, and DINP prices fell rapidly. In Jiangsu, the monthly price decline reached RMB 1,100/tonne. From May to June, export orders increased significantly. However, due to differences in domestic DINP product quality and certification requirements in certain regions, the supplier base for DINP exports remained relatively stable.

2. Trend Forecast

From May to June, five new DINP production lines were added domestically, leading to a notable increase in supply. Domestic consumption was insufficient, and market inventories grew slightly. Imports are expected to remain at low levels.

The supply increase has intensified regional competition, making exports an effective way to relieve local supply pressure. As of the current market, export orders in June remained strong, with temporary delivery backlogs occurring in Jiangsu. Export volumes in June are expected to stay at relatively high levels. However, as geopolitical tensions ease and crude oil prices decline, domestic DINP prices have also fallen. As of June 24, the price decline in Jiangsu had reached RMB 400/tonne. Owing to expectations of further price drops, inquiries for new export orders have gradually decreased, and export volumes in July–August are expected to decline.