Complex sentence: After several supermarket chains and McDonald's expressed concern about the crates, Smithfield announced in 2007 that it would phase them out over ten years, but in June 2009 said this could not be done because of operating losses.
Split into simpler sentences: After several supermarket chains and McDonald's expressed concern about the crates, Smithfield announced in 2007 that it would phase them out over ten years. In June 2009, the company said this could not be done because of operating losses.