No later than [***] after the earliest achievement of each development milestone event set forth below for a particular Collaboration Product, CStone will pay to Blueprint the corresponding development milestone payment set forth below (the development milestone events set forth in Table 10.2.1(a), Table 10.2.1(b), and Table 10.2.1(c) the “ Development Milestone Events ” and the development milestone payments set forth in Table 10.2.1(a), Table 10.2.1(b), and Table 10.2.1(c) the “ Development Milestone Payments ”).