1) QQ Builders Sdn Bhd submitted a tender of RM260,880.40 to construct a single unit showroom and was the third lowest bidder. 2) Reasons for unsuccessful tenders included being over budget, not including necessary safety precautions, and material costs being higher due to it being a small project during peak season. 3) Errors in the tender included using different rates for internal and external wall finishes and wrong unit conversions for material costs. Improvements for future tenders include engaging new subcontractors, investing in BIM software, and better time planning.