I. Points of Focus Translate the above content directly into English as follows: I. Points of Focus

Here's the English translation: 1. 3/21: International oil prices rose driven by market expectations of improving Asian economies and demand, coupled with potential supply risks stemming from unstable situations in the Middle East. NYMEX crude oil futures, May contract, closed at $68.28, up $0.21/barrel, +0.31% compared to the previous day; ICE Brent crude oil futures, May contract, closed at $72.16, up $0.16/barrel, +0.22% compared to the previous day. China's INE crude oil futures, main contract 2505, rose 9.3 to 531.3 yuan/barrel, and further up 4.4 to 535.7 yuan/barrel in the night session.

The PTA market has strengthened, while the BDO market operates with a wait-and-see attitude.

3、Stable production of equipment.

Core LogicCost basis support general market PBT market range Continues to watch.

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3. Market Outlook

Expect the PBT market to remain cautious today. On the cost side, there's a slight increase in PTA supply, stable demand, and the supply-demand imbalance is not significant. The external factors are rather unstable, lacking consistent market drivers. Despite the traditional peak season and undervaluation, there is some positive support for the market. Domestic PTA spot market is expected to mainly see weak rebounds this week. With new production from BDO coming online and main downstream consumers reducing raw material absorption, traders are adopting a cautious bearish outlook. Holders are engaging in let-go negotiations, and the market price center is expected to oscillate downward. Given the lack of push from supply and demand, the market is anticipated to remain in a balancing state. Therefore, Ronzhu predicts that today's medium to low viscosity PBT resin in the Huabei market will trade between 7900-8200 yuan/ton.

IV. Data Calendar Translate the above content directly into English as follows: Four, Data Calendar