6. OTHER ASSETS, NET
Other assets, net of accumulated amortization, consisted of the following:
Advances for long-term purchase contracts
Investment in joint ventures
Debt issuance costs, net
Non-current assets held for sale
Other
Total other assets, net
The decrease in Advances for long-term purchase contracts is the result of amortizing the prepayments usage over the terms of the related contracts.
The entire disclosure for investments and other noncurrent assets.