China's factory activity likely returned to growth in June, albeit by the slimmest of margins, according to a Reuters poll of 23 economists. The official purchasing managers' index is forecast to rise to 50.1 from May's 50.0, just above the 50-point threshold that separates growth from contraction. The Economist Intelligence Unit returned the highest forecast of 50.4, while Moody's Analytics responded with the lowest reading of 49.7. Strong exports, particularly of high-tech goods like automated data processing equipment which jumped more than 60% year-on-year in value terms, have helped offset weak domestic demand, though signs of fading stockpiling and sluggish consumption persist. The private sector RatingDog factory activity survey is expected to fall to 51.6 from 51.8, with that data due on Wednesday.