All fire insurance companies organized or admitted to do business in this state shall maintain a Rating Bureau, to be composed of such number of persons resident in this state as shall be desired and who shall be skilled in the business of fire insurance rating, fire hazard, fire protection engineering, and fire insurance inspection. Said Rating Bureau may be chartered or operated as a corporation, or association, or limited partnership, and shall provide for such officers, board of directors, and bylaws as it may deem proper, and change or alter the same from time to time as may be necessary. The Rating Bureau shall maintain an office in the Jackson metropolitan area; and all of the correspondence, files, papers, and documents of such Rating Bureau shall be preserved by said bureau, and shall be opened at all times to the inspection and examination of any insured or any person interested.