Major resin producers that have left SPI in the past 18 months are:
Chevron Chemical Co. Its president, John Peppercorn, currently is chairman of APC.
Amoco Polymers Inc. Enrique Sosa, its vice president of the chemicals sector, is chairman of APC's Executive Committee.
Solvay America Inc., whose president, Whit Sadler, holds the title of immediate past chairman of APC. Solvay's letter reportedly said it was unhappy with SPI's leadership.
Exxon Chemical Co., which said it did not think SPI could represent the resin industry. Exxon Senior Vice President James Harris sits on APC's nine-member executive committee and leads APC's merger negotiating team.
Nova Chemicals Ltd., whose president, Jeff Lipton, sits on APC's executive committee.