Singapore Airlines orders 1,000 tonnes of neat sustainable aviation fuel from Neste Published on May 7, 2024 Authored by C to I News Desk Starting from May 2024, SIA will offer 1,000 SAF Book & Claim Units (BCUs) for purchase by its corporate travellers, shippers, and freight forwarders. Each BCU represents one tonne of neat SAF with its associated carbon dioxide reduction benefit.