Sign up for ST InvestMe and unlock the full access to exclusive insights and financial literacy courses today.SINGAPORE – Mr Jeya Seelan knows that spice mixing is a dying trade.That did not stop the 36-year-old from expanding his family business, Jeya Spices, which was founded by his grandfather almost 80 years ago.He ventured beyond a shop in Yishun and opened a new outlet in Pasir Ris earlier in 2026, selling spices and a range of groceries. He also supplies spices to hotels, restaurants, caterers and shipping firms.Mr Seelan said: “It is a question I get asked a lot. There are…