Checked ATO website for info and found this example (just...

Checked ATO website for info and found this example (just substitute div income for interest income) - so it seems the NRWT is claimable but still need to confirm with ATO. BINGO!!

Example
Tim, an Australian resident, derives interest income of $1,000 from a foreign country. As that country’s laws require the payer of the interest to withhold tax at a rate of 10%, Tim receives $900 (that is, $1,000 less tax of $100). Although he has not directly paid the foreign income tax, Tim is taken to have paid that tax because it was paid under the law relating to the foreign income tax. Tim includes $1,000 in his Australian assessable income and claims a tax offset of $100.

Also found this:
Foreign taxes where offset is available
A foreign income tax offset may be available for the foreign taxes imposed by Australia's major trading partners, as listed below. This list is not exhaustive, nor does it include local or state taxes, except for India.

	Column 1	Column 2
0	Argentina	Income tax (Impuesto a las ganancias)
1	Canada	Income taxes imposed by the Government of Canada under the Income Tax Act
2	China	Income tax
3	France	Income tax and corporation tax, including any related tax or advance payment
4	Germany	Income tax (einkommensteuer) Corporation tax (korperschaftsteuer)
5	India	Income tax, including any surcharge Capital gains tax Non-resident withholding tax State government imposed taxes on various agriculture incomes
6	Italy	Individual income tax (l'imposta sul reddito delle persone fisiche) Corporate income tax (l’imposta sul reddito delle società, formerly l’imposta sul reddito delle persone giuridiche)
7	Japan	Income tax Corporation tax
8	New Zealand	Income tax Non-resident withholding tax Tax on profits from property sales