A special economic zone between Singapore and the Malaysian state of Johor (JS-SEZ) should include Indonesia’s Riau Islands to ramp up the region’s allure to global investors, an apex business chamber and leading accounting firm have said, ahead of the city state’s budget address next month. As part of its 18 top recommendations, the Singapore Business Federation (SBF), which has more than 32,000 members, and PwC Singapore on Monday said expanding the zone to include the Indonesian islands of...