The current cepci index is 587. estimate the cost to build the following plants today. (a) (b) (c) a 40,000 short ton per year sorbitol plant located in japan. a ge gasification system in mexico processing 12,000 barrels of maya crude per day. a 45 million standard cubic foot per day steam methane reformer for hydrogen production, located on the gulf coast of the u. s. a 115,000 metric ton per year caprolactam plant located in australia.