Silph Co.

Carbos sits in the southwest room of 10F, 5 tiles west and 1 south of the warp panel to 4F.

Rare Candy sits in the southwest room of 10F, 7 tiles west and 3 south of the warp panel to 4F.

Ultra Ball sits by the west wall of 10F's southwest room, 8 tiles west and 1 south of the warp panel to 4F.

HP Up is hidden in a plant on the east side of 10F, 5 tiles west of the warp panel to 4F.