What is the fine-grained topic of the following text: Sime Darby Plantations, whose companies PT Bhumireksa Nusa Sejati and PT Tunggal Mitra Plantation (PT TMP) are among the eight named, had said it "is unable to exert control over activities beyond its operating areas and where it is occupied by others". Only return the topic.
Sime Darby Plantations' lack of control over activities beyond its operating areas.