Chateau Waimarama's silver wines were for its 2009 Cabernet Sauvignon and 2009 Syrah, as well as Chateau Waimarama 2009.
The 2010 Syrah also struck silver.
The winery also grabbed three bronze medals.
Sileni Estate took three silvers with its Greyrock Reserve Merlot 2013, The Lodge Chardonnay 2013 and The Straits Sauvignon Blanc 2014.
Elephant Hill grabbed two silvers with its LE Phant 2013 and the Syrah 2013.
The Hong Kong International Wine & Spirit Competition is run in partnership with the London-based International Wine & Spirit Competition, which has been running for 45 years and is the world's premier platform for recognising quality in the industry.
The competition was created specifically for the Asian market and is the first truly Asian wine competition in the world.