Their startup has raised its total recycled containerboard capacity to 9.98 million tonnes/yr.
PM 36 can make testliner at a rate of 300,000 tonnes/yr.
And the other unit, PM 35, can make 350,000 tonne/yr of board. It is producing recycled fluting, although it was planned to make kraft-top liner.
The two machines were previously scheduled to fire up by June, but the firm declined to explain the change.
On the raw material supply side, sources said that the mill started to buy domestic old corrugated containers (OCC) around the month of June, but in very small volumes.
It did not increase its OCC purchases until August in big enough volumes to furnish the two units.
The two machines are being fine tuned, and it is unknown when they will start commercial production.
Four more PMs:The board giant will start up four more board machines with a combined capacity of 1.35 million tonnes/yr by 2016.
In Sichuan province, the firm is trying to bring a 300,000 tonne/yr recycled fluting PM on stream at its plant in Leshan city by the end of this year.
Elsewhere, Nine Dragons will build a new facility in Shenyang city, Liaoning province.
Two PMs with a combined capacity of around 700,000 tonnes/yr are planned for it.
PM 37 will come online by the end of February next year. It will make kraft-top liner at a rate of 350,000 tonnes/yr.
PM 38, scheduled to have a capacity of around 350,000 tonnes/yr of testliner, will come online by the end of 2015.
The firm is also expanding in Vietnam to tap into overseas markets.
In 2016, it will start up a 350,000 tonne/yr linerboard PM at its mill in Binh Duong province there.