PM has now firm projects which include a stake in a joint venture called Constellation in Samara involving the city's main tobacco factory.
PM has many different projects. 
The passage states that the firm has many different projects. 
( z1 have :ARG0 ( z2 person :ARG0-of ( z3 have-org-role :ARG2 ( z4 minister :mod ( z5 prime ) ) ) ) :ARG1 ( z6 project :ARG1-of ( z7 differ ) :quant ( z8 many ) ) )