MANILA, Philippines - The food and beverage unit of diversified conglomerate San Miguel Corp. is planning to raise as much as P15 billion from the offering of preferred shares early next year. In its application to the Securities and Exchange Commission, San Miguel Pure Foods Co. Inc. (SMPF) said it intends to sell up to 10 million perpetual Series 2 preferred shares with an oversubscription option of up to five million shares at an initial offer price of P1,000 apiece.