Summary: On March 28, a summary of the prices and forecasts for common plastics and engineering materials was provided. The support from the cost side has strengthened, and common materials are adjusting slightly. At the end of the month, the market is replenishing inventory, with PE down 3-19, PP up 1-8, ABS fluctuating by 30-50, and PVC, PS, and EVA stabilizing. Engineering materials show mixed changes, with PC down 50, PET down 15-30, PA6 increasing by 100 across the board, while PMMA, PBT, POM, and PA66 remain unchanged in price.

General materials

PE：

1 

① On March 27: The United States extended sanctions against some oil-producing countries, raising market concerns about potential supply risks, leading to an increase in international oil prices. NYMEX crude oil futures May contract rose by $0.27 to $69.92 per barrel, a month-on-month increase of 0.39%; ICE Brent crude futures May contract rose by $0.24 to $74.03 per barrel, a month-on-month increase of 0.33%. China's INE crude oil futures main contract 2505 rose by 4.0 to 543.4 yuan per barrel, and fell by 0.4 to 543 yuan per barrel in the night session.

Today, the HDPE market prices have dropped by 3-19 yuan/ton; the LDPE market prices have dropped by 5 yuan/ton; the LLDPE market prices are stable, unchanged from the previous working day.

2 Spot Overview

3Price Prediction

PP：

1

1. Sinopec East China PP early month update: Yang F401 increased by 50 to 7700, 1215C decreased by 50 to 7800, Zhen F08MX decreased by 50 to 7800, M50RH decreased by 50 to 8050. PetroChina South China PP adjustment: Guangdong L5E59/7460, L5D98/7470, GH12M/7500.K8003/7620。

2

3

PVC：

1. Today's Summary

2 

Looking ahead to next week, PVC production enterprises have insufficient maintenance efforts. As maintenance enterprises resume operations, market supply is expected to increase. Domestic downstream demand is mainly driven by basic needs, putting pressure on domestic supply and demand. Foreign trade is primarily focused on fulfilling pre-existing orders, which alleviates industry inventory pressure. The expected cost support for the industry is stable but appears to be weakening, and there is considerable uncertainty in macro expectations for next week, particularly regarding global tariff policies. The market is expected to maintain a weak range of fluctuations. The spot price for the electric furnace method of PVC in East China is expected to be in the range of 4850-5000 yuan/ton.

PS：

1 

2 

3

The domestic styrene main market has consolidated and risen, with buying and selling sentiment in the spot market showing a tug-of-war, and some areas exhibiting price increases despite shrinking volume. Throughout the day, the mainstream market saw more rises than falls. Supported by rising raw material prices, the PS market remained stable overall, with sporadic slight increases. However, the overall recovery situation in downstream markets is not as expected, and inventory continues to accumulate. It is anticipated that the PS market prices may not see significant increases in the future. It is expected that the modified benzene price in East China will range from 8,450 to 10,300 yuan/ton.

ABS：

1

2

3

EVA：

1 

2 

4 

PC：

1 

2 

3

PET：

1 

2 

PMMA：

2

3

POM：

2 

PBT：

1

2

4

PA6：

1 

2 

4 

PA66：

1 

2 

4