P.R. Laws tit. 10, § 262
It shall be unlawful for any person to lease, or make a sale or contract for lease or sale, directly or indirectly, of real estate, or lease or make a sale or contract for lease or sale of goods, wares, merchandise, machinery, supplies or other commodities, whether patented or unpatented, for use, consumption or resale in Puerto Rico, or fix a price charged therefor, or discount from, or rebate upon, such price, on the condition, agreement or understanding that the lessee or purchaser thereof shall not use or deal in the goods, wares, merchandise, machinery, supplies or other commodities of a competitor or competitors of the lessor or seller, where in any line of commerce, in any section of the Commonwealth of Puerto Rico, the effect of such lease, sale, or contract for lease or sale, or such condition, agreement or understanding may be to substantially lessen competition or tend to create a monopoly.
History —June 25, 1964, No. 77, p. 235, § 6.