Shenzhen-listed Sieyuan Electric, a grid-equipment maker whose shares have surged about 665 per cent over the past five years, is planning a secondary listing in Hong Kong. The move would give Sieyuan, already a favourite among overseas investors, more direct access to international capital as it pushes into global markets amid rising demand for grid upgrades driven by data centres and artificial intelligence. The company said on Monday night it plans to issue new H shares equal to no more than 15 per c ...