Expressions of interest closed yesterday in Holcim's Westport assets.
Capital projects manager Ken Cowie said Holcim couldn't say how many expressions of interest it had received for each asset until it had reviewed them
"All of the expressions of interest will be reviewed over the next few weeks as we seek any clarifications and, if required, respond to any points raised by interested parties. Proposals will then be finally evaluated."
Mr Cowie said Holcim had no fixed timetable to conclude any sales. Holcim anticipated it would take some time to complete discussions with potential purchasers, he said.
The company closed its Westport cement works last month after 58 years of cement production in Westport. More than 100 jobs disappeared.