Goldman Sachs has a buy rating of HK $3.15 for 0468.HK, a comprehensive aseptic packaging and service provider, with mainland dairy packaging accounting for 82% of its revenue in the first half of November, arguing that it has a price competitive advantage over industry leader Tetra Pak and helps boost market share. It refers to the stock's 12-year core price-to-earnings ratio of 9 times (it was 16.5 times when it was listed at HK $4.30 in December last year).

Dianmei fell 1.2 per cent to HK $2.42 yesterday.