Some studies report evidence of causality between high consumption of refined sugar and hyperactivity. It is not to be confused with amber corn syrup or amber refined sugar. Production of refined sugar and electricity began in January 2013. It is difficult to distinguish between fully refined sugar produced from beet and cane. It is the largest refined sugar distributor in Canada. There are no micronutrients of significance in fully refined sugar (right table). Omnicane owns sugarcane plantations in Mauritius and produces refined sugar. In the late 1790s, sugar production began to produce more refined sugar crystals. Consequently, prices of refined sugar dropped and there resulted an increase in sugar consumption. Refined sugar was a luxury before the 18th century. The company is also a large producer of refined sugar, sweet corn and oranges. Refined sugar is widely used for industrial needs for higher quality. Two different sources of sugar may be used, either molasses or white refined sugar. The refined sugar produced is more than 99 percent pure sucrose. Norway taxes refined sugar, and Mexico has various excises on unhealthy food.