SHANGHAI, Aug 9 (Reuters) - Sixteen Chinese companies, mostly private, have defaulted on payments on 34 corporate bonds worth 37.5 billion yuan ($5.49 billion) so far in 2018, adding to worries about risks to the economy as growth slows and a trade war with the U.S. intensifies. That compares to 30 such defaults worth 26 billion yuan in all of 2017. More than 40 percent of the defaults so far this year have occurred since the beginning of June, although that in part reflects multiple defaults by single issuers, such as four missed payments by Wintime Energy Co Ltd and three by CEFC Shanghai International Group since June. While China has moved to ease credit conditions and encourage investment in corporate bonds to support struggling private firms amid signs of slowing economic growth, corporate issuers have not been the main beneficiaries of these policies. Despite the relatively high number of cases this year, China's policymakers have said that the default rate remains much lower than in many other countries, and that risks in the bond market are generally controllable. Following is a list of defaults as of Aug. 9, 2018: Issuer Issuer Value (CNY) Maturity Tenor Coupon Type type Wintime Private 3,590,000,000 2018/08/06 5 years 7.30% Exchange-t Energy Co Ltd raded corporate bond Leshi Private 73,000,000 2018/08/03 5 years 10.00% Private Internet placement Information & Technology Corp Wintime Private 1,000,000,000 2018/07/30 3 years 7.50% MTN Energy Co Ltd Wintime Private 1,000,000,000 2018/07/30 3 years 7.50% MTN Energy Co Ltd Dalian Private 400,000,000 2018/07/30 3 years 7.00% MTN Machine Tools Group Corp CEFC Shanghai Private 2,000,000,000 2018/07/29 9 months 6.00% Super International short-term Group Ltd commercial paper Inner Private 800,000,000 2018/07/18 5 years 7.00% MTN Mongolia Berun Group Co Ltd China City SOE 1,800,000,000 2018/07/16 5 years 4.93% MTN Construction Holding Group Co Bright Oceans Private 326,000,000 2018/07/11 5 years 7.10% Exchange-t Corp raded corporate bond Wintime Private 1,500,000,000 2018/07/05 1 year 7.00% Short-term Energy Co Ltd commercial paper CEFC Shanghai Private 2,000,000,000 2018/06/25 9 months 5.97% Super International short-term Group Ltd commercial paper CEFC Shanghai Private 2,500,000,000 2018/06/21 3 years 7.88% MTN International + N Group Ltd Zhongrong Private 600,000,000 2018/06/13 3 years 7.50% Exchange-t Shuangchuang raded Beijing corporate Technology bond Group Co Ltd Sunshine Private 1,800,000,000 2018/06/02 5 years 6.80% Exchange-t Kaidi New raded Energy Group corporate Co Ltd bond CEFC Shanghai Private 2,000,000,000 2018/05/21 9 months 6.00% Super International short-term Group Ltd commercial paper Sichuan Coal SOE 500,000,000 2018/05/21 5 years 5.94% MTN Industry Group Co Ltd Fuguiniao Co Private 1,300,000,000 2018/05/08 5 years 6.50% Private Ltd placement Kaidi Private 657,000,000 2018/05/05 7 years 6.27% MTN Ecological and Environmental Technology Co Ltd China Private 91,350,000 2018/04/30 3 years 9.00% Private Security Co placement Ltd Shenwu Private 2,000,000,000 2018/04/28 3 years 4.60% Exchange-t Environmental raded Technology Co corporate Ltd bond Evergreen Private 540,000,000 2018/04/24 6 years 7.78% Exchange-t Holding Group raded corporate bond Fuguiniao Co Private 800,000,000 2018/04/23 5 years 6.30% Exchange-t Ltd raded corporate bond Bright Oceans Private 1,210,000,000 2018/04/21 5 years 7.10% Exchange-t Corp raded corporate bond Shenwu Private 450,000,000 2018/03/14 3 years 8.00% Private Environmental placement Technology Co Ltd Dandong Port Private 900,000,000 2018/03/13 5 years 5.67% MTN Group Co Ltd Dandong Port Private 1,000,000,000 2018/03/10 3 years 6.00% MTN Group Co Ltd Bright Oceans Private 755,000,000 2018/03/02 5 years 7.10% Exchange-t Corp raded corporate bond China City SOE 1,800,000,000 2018/03/01 5 years 3.97% MTN Construction Holding Group Co Dalian Private 500,000,000 2018/02/05 3 years 7.80% Private Machine Tools placement Group Corp Dandong Port Private 2,000,000,000 2018/01/27 5 years 5.50% Exchange-t Group Co Ltd raded corporate bond Bright Oceans Private 209,000,000 2018/01/27 4 years 7.10% Exchange-t Corp raded corporate bond Dalian Private 400,000,000 2018/01/14 3 years 7.00% MTN Machine Tools Group Corp Dandong Port Private 500,000,000 2018/01/13 3 years 7.60% Private Group Co Ltd placement Sichuan Coal SOE 500,000,000 2018/01/09 3 years 7.70% Private Industry placement Group Co Ltd ($1 = 6.8267 Chinese yuan) (Reporting by Andrew Galbraith and Steven Bian; Editing by Kim Coghill)