Complex sentence: In the beginning of 2007, the name was relaunched by May Cheong, which markets Maisto, so the situation is analogous to Mattel owning both Hot Wheels and Matchbox.
Split into simpler sentences: In the beginning of 2007, the name was relaunched. It became owned by the May Cheong Group which markets Maisto, so the situation is analogous to Mattel owning both Hot Wheels and Matchbox.