Standard Development Group Co., Ltd. (formerly known as Leslie Holdings Group Co., Ltd.) is an investment holding company mainly engaged in reconstruction and addition projects. The company operates through three departments. The alteration and addition Services Division is engaged in structural alteration works, steel structure works, signage works, building maintenance, renovation works, ground improvement works and others. The Interior Decoration and renovation Services Division is engaged in the interior decoration and renovation of shops and offices and residential premises in commercial and industrial properties. The interior design service branch is engaged in providing interior design services.