Chemical pretreatments were tested on sweet sorghum bagasse to see how they affect the composition of the plant material for bioethanol production. Different methods using sulphuric acid, sodium hydroxide, or a combination of both were compared. The best results for cellulose content and lowest lignin content were seen with a combination of 2% sulphuric acid and sodium hydroxide. Sodium hydroxide pretreatments resulted in moderate cellulose, hemicellulose, and lignin levels. Overall, the sequential sulphuric acid and sodium hydroxide method showed the most promising composition for enzyme breakdown, with high cellulose, low lignin, and good hemicellulose levels. Further testing is needed to determine which method is best for producing fermentable sugars.