Blackstone, Temasek-backed Mapletree vie for Samsung building in Seoul A worker works on a Samsung outdoor advertisement installed atop an office building in central Seoul March 23, 2015. REUTERS/Kim Hong-Ji Mars Woo June 12, 2018 PremiumBlackstone Group and Temasek-backed Mapletree investments have made bids to acquire Samsung C&T Corporation‘s office building in Seoul in a deal that could set a new record for the most expensive office building in South Korea. 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.