Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer. Tomorrow, Tuesday, June 30, 2015, 23 U.S. common stocks are scheduled to go ex-dividend. The dividend yields on these stocks range from 0.6% to 17%. All of these stocks can be found on our stocks going ex-dividend section of our dividend calendar. Highlighted Stocks Going Ex-Dividend Tomorrow: Huaneng Power International At a price of $54.71 as of 9:34 a.m. ET, the dividend yield is 7.9%. The average volume for Huaneng Power International has been 73,100 shares per day over the past 30 days. Huaneng Power International has a market cap of $20.0 billion and is part of the utilities industry. Shares are down 1.5% year-to-date as of the close of trading on Friday. EXCLUSIVE OFFER: See inside Jim Cramer's multi-million dollar charitable trust portfolio to see the stocks he thinks could be potential winners. Click here to see his holdings for 14-days FREE. Huaneng Power International, Inc., an independent power producer, generates and sells electricity and heat to the regional or provincial grid companies in the People's Republic of China and Singapore. The company has a P/E ratio of 138.68. TheStreet Ratings rates Huaneng Power International as a sell. The company's weaknesses can be seen in multiple areas, such as its generally high debt management risk, weak operating cash flow and unimpressive growth in net income. You can view the full Huaneng Power International Ratings Report now.