Bus. & Prof. Code, § 16720

A trust is a combination of capital, skill or acts by two or more persons for any of the following purposes:

(a) To create or carry out restrictions in trade or commerce.

(b) To limit or reduce the production, or increase the price of merchandise or of any commodity.

(c) To prevent competition in manufacturing, making, transportation, sale or purchase of merchandise, produce or any commodity.

(d) To fix at any standard or figure, whereby its price to the public or consumer shall be in any manner controlled or established, any article or commodity of merchandise, produce or commerce intended for sale, barter, use or consumption in this State.

(e) To make or enter into or execute or carry out any contracts, obligations or agreements of any kind or description, by which they do all or any or any combination of any of the following:

(1) Bind themselves not to sell, dispose of or transport any article or any commodity or any article of trade, use, merchandise, commerce or consumption below a common standard figure, or fixed value.

(2) Agree in any manner to keep the price of such article, commodity or transportation at a fixed or graduated figure.

(3) Establish or settle the price of any article, commodity or transportation between them or themselves and others, so as directly or indirectly to preclude a free and unrestricted competition among themselves, or any purchasers or consumers in the sale or transportation of any such article or commodity.

(4) Agree to pool, combine or directly or indirectly unite any interests that they may have connected with the sale or transportation of any such article or commodity, that its price might in any manner be affected.