從2018年12月31日起, DE BEERS AUCTION SALES HOLDINGS LIMITED (公司編號: 1010027) 按《公司條例》第680/681條的規定,與DE BEERS AUCTION SALES HONG KONG LIMITED (公司編號: 0090214), 鑽石發展有限公司 DIAMDEL (HONG KONG) LIMITED (公司編號:. 1851985) 及 DIAMDEL HOLDINGS LIMITED (公司編號: 1851988) 合併。而前者為合併後的公司。ON 31 DECEMBER 2018, DE BEERS AUCTION SALES HOLDINGS LIMITED (CR NO. 1010027) WAS AMALGAMATED WITH DE BEERS AUCTION SALES HONG KONG LIMITED (CR NO.0090214), 鑽石發展有限公司 DIAMDEL (HONG KONG) LIMITED (CR NO. 1851985) & DIAMDEL HOLDINGS LIMITED (CR NO. 1851988) PURSUANT TO SECTION 680/681 OF THE COMPANIES ORDINANCE. THE FORMER IS THE AMALGAMATED COMPANY.