The Washington state convention and trade center, hereinafter referred to as the corporation, has been established pursuant to chapter 34, Laws of 1982, to acquire, design, construct, maintain, operate, promote and manage a state convention and trade center. The corporation is a public nonprofit corporation formed in the same manner as a private nonprofit corporation is formed under chapter 24.03 RCW. The corporation is an instrumentality of the state, and has all the powers, and is subject to the same restrictions as are permitted or prescribed to private nonprofit corporations, but may exercise those powers only for carrying out the purposes of chapter 34, Laws of 1982, and those purposes necessarily implied therefrom.