NanoViricides Inc. (NNVC)

[loanranger]

I hope I can provide answers that make sense to you.

"are current liabilities not subtracted from cash and cash equivalents?"
Eventually they are. Current liabilities are PAID out of cash and not subtracted until that happens. So "as of March 31, 2018" the company had $10.6M in cash and owed a total of $2.3M of which $1.7M was due to TheraCour. Same thing said another way would be to say that the company has $8.3M in cash more than they currently owe.

"why specifically mention the $602K and the $1,689K here at all?"
"why these bits of information and not others from their balance sheet?"
Same answer to both and it's in the section Heading, which is "Liquidity and Capital Reserves".
The sole purpose of the section is for management to discuss the adequacy of their cash to meet the company's expected needs. Other balance sheet items are discussed in other sections or not at all but these bits are right where they belong.

Hope that was clear enough. If not let me know. Thank you for not asking me to explain the derivative liability. It's a BIG number but it doesn't normally require an outlay of cash at any point. It comes out of previous issuances of options and/or warrants and the effect that share price changes in the market and new issuances have on their original pricing and that's all I'm sayin' about it :o)