Lina Yi

MEMPHIS, TN, United States
Heli Americas has appointed Lina Yi as marketing assistant. Yi will assist in growing the company's marketing and operational functions, including sales and inventory management. She previously worked for Cummins Engine Recon Marketing Group. Yi has an electrical engineering degree and an MBA.

GREENWICH, CT, United States
Bradley S Jacobs, United Rentals Inc's board of directors chairman, has stepped down as the company's chairman and director. Jacobs served as chairman since co-founding United Rentals in 1997.

SOUTHAMPTON, United Kingdom
Bac2, a fuel cell materials company, has appointed Jim Totczyk as head of production. Totczyk, a production engineering specialist, was head of operations at Meggitt Avionics. Previously, he spent 17 years at Brookes & Gatehouse, most recently as director of manufacturing, where he worked on polymer moulding techniques for hermetic sealing.