Here's what you need to know about SIA Engineering, one of Singapore's best dividend dominators. Is this a buy right now? I like businesses that produce rising earnings with little capital invested. SIA Engineering (SGX:S59) was one of those excellent businesses. Without their service, aircrafts would grind to a halt. SIA Engineering does one simple yet crucial job: it makes sure aircrafts are well fixed up before their next flight. At S$2.7 billion market cap, SIA Engineering is a major Maintenance, Repair and Overhaul (MRO). It doesn’t need to invest in factories or heavy equipment to run the business. Instead, it works with big aircraft engine makers — General Electrics, Pratt & Whitney and Rolls Royce to maintain and repair engines in Boeing and Airbus aircrafts. I call this an “asset-light” business. SIA Engineering produced, at one point, S$1.2 billion in revenues and S$270 million of earnings. The best part of this business is it only needs to sink in S$40 million of capital a year to...