In addition to improving our service delivery we also take part in a range of activities and initiatives such as reducing our transport emissions controlling purchases and in many cases contributing to communities through different kinds of sponsorships

What is the correctly punctuated version of this sentence?
In addition to improving our service delivery, we also take part in a range of activities and initiatives, such as reducing our transport emissions, controlling purchases and, in many cases, contributing to communities through different kinds of sponsorships.