Slaughter and May and Freshfields Bruckhaus Deringer are among a number of international law firms to have picked up mandates on two major Hong Kong Stock Exchange listings which closed this week.

China’s largest pharmaceutical company, Sinopharm, raised HK$8.73bn (£688m), while Metallurgical Corp raised HK$18.2bn (£1.4bn) from the listings, which together dwarfed the initial public offering (IPO) activity to have taken place on the Hong Kong exchange so far this year.