Complex sentence: The allegations were refuted by the then managing director Jeremy Tear, and it should be noted that no official body or agency then charged with the oversight of activities at the waltham abbey site reaised any concerns connected with the activity or safety procedures at the plant.
Split into simpler sentences: The allegations were refuted by the then managing director Jeremy Tear. No official body or agency then charged with the oversight of activities at the Waltham abbey site reaised any concerns connected with the activity or safety procedures at the plant.