POET Technologies Inc.

Progress in that part of the sentence progress does not necessarily refer to the progress of milestones.

It could mean progress in other areas whatever they might be.

Why would "achieved" refer to a previous milestone that in the past they have already announced that they have achieved? This sounds like something new folks.

"The company remains on track with its technology road map,"

This implies that they are meeting the timetable set for the milestones.

Everyone should put on their seatbelts. We might be going on a ride.