* Continues to discuss various asset sales

* Stock up nearly 4 percent

MEE.N) said on Wednesday that news reports suggesting it is preparing to put itself up for sale are untrue.

However, the company continues to have discussions with several entities regarding various asset sales and/or joint venture opportunities, it said in a statement.

The comments came seven weeks after 29 miners were killed in an explosion at a Massey-owned mine in West Virginia.

The company said it was responding to various media reports indicating management is preparing the company for sale.

"These reports are not true," Massey said.

JNSP.BO) to work together and bid for the development and operation of underground coal mining projects.

The major focus of the announced collaboration will be on potential projects in India, Mongolia, Australia and the United States, Massey said.

Massey stock, which has dropped over 30 percent since the April 5 accident at the Upper Big Branch mine, rose 3.6 percent to $32.40, in afternoon trading on the New York Stock Exchange.