The consortium will likely borrow around $1bn in 2012-2013, Reuters reported.
In 2008, Russia, Kazakhstan and private shareholders agreed on the main principles of expanding the pipeline to allow it to ship 67 million tonnes of oil a year by 2014 compared with 34.57 million tonnes in 2009.
CPC head Aleksander Tarakanov said that he believes that the company will not go beyond $4.6bn, but it will know better by the end of the year.
“We will try to avoid additional financing, but there could be the need (to borrow) some $1bn in 2012-2013,” Tarakanov said.
CPC is owned 31% by Russia and 20.75% by Kazakhstan.
The rest is shared among private companies united in a consortium led by Chevron and includes two joint ventures.
