This book discusses in detail the facts and findings related to the X-Press Pearl container vessel accident that occurred in May 2021 off the coast of Colombo, Sri Lanka. The ship was carrying a large consignment of chemicals and diverse hazardous materials that caused a disastrous and vast environmental and social catastrophe in the region. Through many case studies, accumulated knowledge, and experiences, the authors discuss the accident response, risk mitigation, investigation, and damage assessment activities from the very onset of the accident. It helps researchers and regulators understand the facts of this unique marine chemical accident and to formulate necessary future regulations as well as to develop robust safety and sustainability management systems and safety cultures. Features: Written by authorities who led the team involved in accident response and damage assessment Focuses on identifying plausible root causes, pitfalls in accident response, and weaknesses in current regulatory and management protocols Delivers in-depth understanding of a unique marine chemical accident to help formulate necessary future policies and regulations related to such disasters Includes many case studies related to the accident illustrated with photos and figures that are true evidence of the disaster, the response, and the mitigation Explains and discusses key research findings in a streamlined manner understandable for a wide audience A valuable resource for readers in environmental management and policy creation, as well as for researchers, professionals, academics, and students involved in environmental science, chemical engineering, technical safety and sustainability management, maritime, polymer, and ocean sciences. Countries where maritime disasters are a concern will also find this book is an important guide for taking a responsible approach when handling similar situations in the future; not least to avert such events from occurring.