The fact sheet from Sensi Chew lists the following ingredients: "Sugar, corn syrup, cream, cocoa, butter, salt, soy lecithin, cannabis concentrate (30%CBD – 70%THC.)"
You can view the full fact sheet here: http://sensiproducts.wpengine.com/wp-content/uploads/2016/09/info_CBD-gold_web.pdf
When the SensiChew lists ‘Sugar’ as the first ingredient, it implies refined white sugar. An article from the Sugar Research Advisory Service (https://www.srasanz.org/sras/basics-sugar/food-labelling/) notes that cane sugar and its derivatives must be labelled specifically as "Cane Sugar". It’s safe to assume that these chews are free of cane sugar.