[Global Economic Conditions]: Global economic growth impacts demand for 1303.TW's products, affecting its revenue and stock price.

[Petrochemical Industry Trends]: As a petrochemical company, 1303.TW's performance is closely tied to trends in the petrochemical industry, including supply, demand, and pricing.

[Raw Material Costs]: Fluctuations in raw material prices, such as crude oil, significantly affect 1303.TW's production costs and profitability, influencing its stock value.

[Company Financial Performance]: 1303.TW's revenue, profit margins, and earnings per share are crucial indicators that investors use to assess its value and impact the stock price.

[Government Regulations]: Environmental regulations and trade policies can impact 1303.TW's operations and profitability, thereby influencing its stock price.

[Investor Sentiment]: Overall market sentiment and investor confidence in 1303.TW and the broader petrochemical sector can drive buying and selling pressure, affecting the stock price.