I think JL and JD also do. Along with NH, these companies' discount coupons for shareholders are widely sold at 'coupon shops' in Japan, apparently shareholders who got them just sell them for cash.

JD is Japan Air System, the No. 3 Japanese airline serving mostly domestic routes.

Just digressing a bid, I might add these shareholder coupons were rumoured to be used by these airlines to generate funds to make donations to politicians.