longer building phase

From ABC
"The decision of the timber company Gunns to reduce the construction workforce for its planned Tasmanian pulp mill has taken few people by surprise.

The company has extended the building phase for its planned mill in the north from two years to 30 months and says it will only need 1,250 workers, not 2,900.

The State Government's issued a statement saying the total number of hours worked and the average number of workers over the life of the project can be expected to remain the same."

Six months more work - but with less than half the workforce. Still no announcement on funding. Anyone know where we're going here?