Tamil Nadu Newsprint and Papers Ltd (TNPL) is mulling to infuse Rs 1,000 crore to expand its paper making capacity to four lakh tonnes a year from current 2.45 lakh tonnes. NPL also considering entering into cement manufacturing business, using waste wet lime sludge generated from its paper making operations and fly ash generated from its power boilers. Spiralling fuel prices, power cost and constraints in raw material accessibility prompt domestic mills to think for a price revision on PWP. Price of PWP is hoped to increase by six per cent in July to Rs 46,000 to Rs 47,000 a tonne from the current price of Rs 44,000. The company sources PWP to both domestic and international markets. Export accounts for around 22 per cent of the total production. TNPL has finished a Rs 600-crore pulp mill expansion with the establishment of a modern pulp mill, which follows the elemental chlorine free production process.