Lock did not return calls, and his residence is unknown after McDonald Vague forced the sale of his Morrinsville home to claw back funds for creditors.
Herald investigations have revealed a similar Lock company, Functional Nutraceuticals, also collapsed in 2011.
Liquidator Grant Reynolds, of Reynolds & Associates, said in reports Functional Nutraceuticals owed $602,375 but less than $10,000 could be realised from assets sales and GST refunds.
The company was said in reports to have been set up in 2001 to export colostrum, but had later moved to supply Manuka honey and oil to markets in China and Russia.
Reynolds said in reports Lock had "explained that the company had sales orders to export honey and that if those orders could be completed then the income derived would enable all company creditors to be paid and that the liquidation could be terminated."
The claims came to nought, Reynolds said: "Those orders have not eventuated as first anticipated."