Who is the owner of CBK?

Could you please clarify for me who exactly is the owner of CBK? I've been hearing a lot about this institution recently and I'm quite curious about its ownership structure. Is it a private entity or does it belong to the government? If it's private, could you tell me who the major shareholders are? And if it's public, how does the ownership distribution look like? I'm also interested in knowing if there are any regulations or policies that govern the ownership of CBK. Thank you in advance for shedding some light on this matter.