PT. Lingga Harapan was established in 1992 and produces bottled water with the Reverse Osmosis technology. Till this date, PT. Lingga Harapan produces bottled water products under the brand Arthess and its sister brand Citra, with products consisting of several different packages from 330ml bottles, 600ml bottles, 1500ml bottles, 120ml cup, 240ml cup and also 19 litre gallon packaging.