Greater Bay Airlines has become the latest Hong Kong-based carrier to raise its fuel surcharges by 34 per cent amid the ongoing conflict in the Middle East, with the fee for destinations other than mainland China set to hit HK$389 (US$50). China’s largest courier, SF Express, also said on Friday it would switch to adjusting its fuel surcharge rates from a monthly to a weekly basis beginning in April because of the “continuous and frequent fluctuations” of international oil prices. Global fuel...