A $10-a-month fee on mobile phones would generate $460 million a year, the blueprint said. More than seven out of 10 people in Hong Kong own a mobile phone, according to a recent survey, one of the highest ownership rates in the world. A spokeswoman for mobile phone company Sunday said the Government was already taxing subscribers with a $30 annual fee for mobile station service fees. 'Our question is why does the Government want to charge more for mobile phone users?' The consultation paper says the tax would be difficult to avoid or evade and would have low collection and administration costs. But it would not be capable of 'generating significant levels of revenue on a standalone basis'. 'For illustration, a flat-rate $10 monthly charge on each mobile phone user will yield around $460 million per annum.' Consumer Council spokesman Kenneth So Wai-sang said taxation matters were outside the body's jurisdiction. 'Consumers will be affected . . . but we have no stand that we can express publicly.' The consultation document lists the tax as 'relatively broad-based given the high penetration rate. As only persons using mobile telephones . . . pay the tax, it is not neutral in its application.'