Goldman Sachs Group (GS) is the only investment bank working on the sale of ports owned by CK Hutchison Holdings to a group led by BlackRock (BLK), Bloomberg reported Wednesday, citing people familiar with the matter.

A small group of Goldman executives moved quickly to hash out the potential $19 billion transaction, which includes two ports on both sides of the Panama Canal, in a couple of weeks, and reached out to potential suitors, the report said.

BlackRock declined to comment, while Goldman and CK Hutchison did not immediately reply to requests for comment from MT Newswires.

Blackstone and KKR also considered bids. Former Citigroup chief executive officer and Teton Advisors founder Mike Corbat also advised CK Hutchison on the deal, the report said. The Blackrock consortium is not currently using any financial advisers, but banks have been targeting to land advisory and financing roles with the group, the report said.

(Market Chatter news is derived from conversations with market professionals globally. This information is believed to be from reliable sources but may include rumor and speculation. Accuracy is not guaranteed.)