Concord Ocean Environmental Protection Service Co., Ltd, which is one of the most famous and professional sludge disposal company certified by China MSA and Harbor Master, has the great capacity and rich experience to deal with the ship sludge. High quality is our promise, safe operation is our notion. If you have any interest of it, please contact with us for further discussion. Most importantly, a Marpol Certificate and Customs Clearance wil be provided for all ships in China, which is issued by China MSA and Harbor Master will be offered to ur ship after the operation. For another, we will offer a good quotation for your ship sludge.