The chapter on Hyflux Ltd (SGX: 600) is about to come to a close. A few days ago, the firm announced that its judicial managers have applied to the court to wind it up. The latest move comes after unsuccessful negotiations with an investor to buy over the group and a failed restructuring attempt. Its judicial managers believe that the remaining value of Hyflux is best realised in a liquidation, which is a process that brings a business to a close and distributes its assets to creditors and owners. If the court approves, it will mark the end of Hyflux, which was once a success story of Singapore Inc. This will come at least five years after trading in Hyflux securities were suspended in May 2018. With that, here are two quick checks investors can perform to protect their investment portfolio and prevent something similar from hitting their stocks....