Mark Hornstra has been appointed senior vice president of product planning of Topcon Positioning Systems (TPS). The announcement was made by Ray O'Connor, president and CEO of TPS.

Hornstra has spent the past seven years at SanDisk Corporation in various director and executive level positions including vice president of worldwide Sales Operations and Demand Planning, and vice president of worldwide sales in the mobile handset business. He was also responsible for SanDisk's retail and OEM business in Japan for three years. Throughout his career, Hornstra has also held director and executive level positions in sales, product marketing/product management, business development and management.

O'Connor said Hornstra has "a rich history in the consumer electronics, industrial, commercial and aerospace industries. His strong analytical approach and experience in various phases of management will enhance the company's product management operations."

In his new role, Hornstra will also be a member of the TPS Executive Committee. TPS product managers will report directly to Hornstra, O'Connor said.