NGAI Hing Hong Co, a plastic resins and colourants supplier, has announced a bonus share and warrant issue after more than doubling attributable profit in the first half. The company recorded a 101 per cent growth in attributable profits to $42 million for the six months to December last year. Directors have proposed a bonus issue of one share for every two held and one warrant for every five shares. With 200 million shares on issue, 100 million bonus shares and 40 million bonus warrants with an exercise price at $6 will be issued. Turnover grew 13 per cent during the half to $319 million, while earnings per share jumped to 20.9 cents. Shareholders will receive an interim dividend of 12 cents, up from 3.4 cents a year earlier.