v150299_ex4-2 -- Converted by SECPublisher 2.1.1.8, created by BCL Technologies Inc., for SEC Filing

EX-4.2 12 v150299_ex4-2.htm v150299_ex4-2 -- Converted by SECPublisher 2.1.1.8, created by BCL Technologies Inc., for SEC Filing

Exhibit 4.2