Crude Oil Prices: SUSCO's profitability as a fuel retailer is directly linked to crude oil costs. Higher crude prices can increase their input costs, potentially squeezing margins if they can't fully pass those costs to consumers.

Demand for Fuel: Economic activity and consumer behavior influence fuel demand. Strong economic growth typically leads to higher fuel consumption, boosting SUSCO's sales and potentially its stock price. Conversely, recessions or increased fuel efficiency can dampen demand.

Refining Margins: While SUSCO primarily focuses on retail, refining margins impact the price of gasoline and other fuels they sell. Higher refining margins generally translate to better profitability for the entire industry, positively affecting SUSCO.

Government Regulations: Policies related to fuel standards, taxes, and subsidies can significantly impact SUSCO. Changes in excise taxes or environmental regulations can alter fuel prices and consumer behavior, influencing the company's financial performance.

Competition: The level of competition within the fuel retail market in Thailand affects SUSCO's ability to maintain prices and market share. Intense competition can lead to price wars and reduced profitability.

Company-Specific News: News related to SUSCO's expansion plans, financial performance, or strategic partnerships can directly influence investor sentiment and the stock price. Positive announcements tend to drive the price upward, while negative news can cause it to decline.