31 Pa. Stat. § 700j-703
Licensees under this act, and associations or corporations thereof, producers of milk, producers' or farmers' unions or organizations and co-operative agricultural associations or corporations engaged in collectively processing, preparing for market, handling or marketing milk, may acquire, exchange, interpret and disseminate past, present and future market, statistical, economic and educational information pertaining to milk by direct exchange between such persons or such associations or corporations, or by and through a common agent created or selected by them, which agent may be the commission if it consents to be such. Any such licensees, producers and associations or corporations may confer and discuss the cost of production, marketing, market conditions and prices for milk.
A milk dealer or handler shall upon the request of a producers' or farmers' union having written authority from producers, or of a co-operative, supply it with the information required to be kept under subsection (1) of section 701 of this article, in so far as such information pertains to the milk produced by the stockholders, members or patrons of such producers' or farmers' union or cooperative selling or supplying milk to such milk dealer or handler.
31 P.S. § 700j-703