The shares last traded at 32 cents and have fallen 27 per cent this year and the company dropped out of the NZX 50 Index in March. Wrightson will pay a final dividend of 1 cent a share, adding to its interim payment of 2.2 cents. The record date is Aug. 30.
Goodwill, largely resulting from the 2005 merger of Wrightson and Pyne Gould Guinness, was written off after a board review. The company said the board reviewed factors including the share price, slower than expected recovery "and a range of external variables."
The impairment was spread between Livestock ($80 million), AgriServices ($109 million), other AgriServices ($29 million) and AgriTech ($212 million), meaning all those divisions reported net losses in the latest year.
The company's retail arm, which includes Rural Supplies and Fruitfed, had a 27 per cent decline in revenue to $433 million, while operating EBITDA rose to $23 million from $21.8 million.
Livestock sales fell 26 per cent to $98.5 million and operating EBITDA declined to $12 million from $18 million. AgriServices had a 21 per cent drop in revenue to $709.5 million and little changed operating EBITDA of $46.2 million.
Other AgriServices, which includes insurance, real estate, irrigation and pumping, AgNZ, wool and South American operating, reported a 4.5 per cent gain in annual sales to $177.6 million and lifted operating EBITDA to $10.8 million from $6.3 million.
AgriTech, which includes seeds and grain, Agrifeeds and South American operations, had a 3.7 per cent decline in sales to $419 million while operating EBITDA declined to $24.7 million from $30 million.
Chairman John Anderson said the company expects "continued improvement in the fundamental performance of the business through 2013/14 based on stronger agricultural commodity prices and assuming a return to normal conditions on farm."