The Straits Times Investors in Envy 'nickel trading scheme' may have to return gains of $119.7m The 424 investors had invested in a dodgy $1.2 billion nickel trading scheme involving businessman Ng Yu Zhi (right).PHOTOS: REUTERS, ST FILE New: Gift this subscriber-only story to your friends and family https://str.sg/3JpL They can read the article in full after signing up for a free account. Share link: Or share via: Sign up or log in to read this article in full Sign up All done! This article is now fully available for you Read now Get unlimited access to all stories at $0.99/month for the first 3 months.