Demand & Supply: Increased demand pushes prices up; increased supply pushes them down.

Financial Performance: Strong earnings, revenue growth, and profitability typically increase stock price.

Economic Conditions: Overall economic health (GDP growth, inflation, interest rates) impacts investor sentiment and SMPC.BK's performance.

Industry Trends: Positive trends in the cement or construction industries can boost SMPC.BK, while negative trends can hurt it.

Company News: Major announcements (expansion plans, contracts, legal issues) can significantly affect stock price.

Investor Sentiment: Positive or negative investor mood towards SMPC.BK and the market in general can drive price fluctuations.

Dividend Policy: A generous dividend policy can attract investors, increasing demand and price.

Government Regulations: Changes in environmental regulations or construction policies can impact SMPC.BK's operations and profitability.

Competition: The actions of competitors (price changes, new products) can affect SMPC.BK's market share and profitability.

Global Events: Global economic events or political instability can impact investor confidence and the stock market.