CITIC-controlled Harbin Pharma to acquire 40% of US retailer GNC for $300m Pramugdha Mamgain February 15, 2018 PremiumCITIC Capital-controlled Harbin Pharmaceutical Group (Hayao) on Wednesday announced that it has entered into an agreement to acquire a 40 per cent stake in NYSE-listed GNC Holdings and also form a China joint venture with the latter. Continue reading this story with a subscription to DealStreetAsia. Subscribe Already a subscriber? Log in Should your colleagues be reading this article too? Contact us for corporate subscriptions at email@example.com.