Thus, technology transfer is essential to the achievement of SDG 7. Around half of LDCs’ imports of power-generating machinery and 70 per cent of electrical end-use machinery and appliances are from ODCs, highlighting the growing importance of South-South trade as a vehicle for energy-related technology transfer. From this perspective, technology-transfer measures in favour of LDCs have a rather inadequate track record, reflecting vague and nonbinding formulation, lack of adequate funding, fragmentation and limited political will (UNCTAD, 2016b).