(EnergyAsia, Singapore, February 2 2016, Tuesday) – Swiss chemical logistics firm Bertschi AG will invest another S$20 million in a dangerous goods warehouse to add to its newly opened S$45 million plant on Singapore’s oil and chemicals hub on Jurong Island. (US$1=S$1.42). Hans-Jörg Bertschi, President and CEO of Bertschi Holding AG, made the announcement for…