CNPC (Hong Kong) last night raised HK$3.72 billion ($480 million) from a top-up placement that was very well received by investors who viewed the fundraising as the first concrete sign that a long-anticipated asset injection story may be about to unravel.According to a source, the offering was fully covered within 30 minutes and attracted more than $1 billion of demand, predominantly from long-only funds. Almost 100 investors submitted orders.CNPC (HK), a Hong Kong-listed red-chip which is active in the exploration and production of crude oil and natural gas in ...