STX Offshore & Shipbuilding wasW1,029.9 billion, a decrease fromW1,079.8 billion as of December 31, 2017, primarily due to a decrease in guarantees and the repayment of certain existing loans. As of December 31, 2018, our exposure to Dongbu Steel decreased toW1,189.9 billion fromW1,212.1 billion as of December 31, 2017, primarily due to adebt-to-equity swap and an increase in the impairment of shares of common stock of Dongbu Steel.As of December 31, 2018, our exposure to Hanjin Heavy Industries and Construction increased toW1,233.1 billion fromW1,145.4 billion as of December 31, 2017, primarily due to an increase in guarantees. As of December 31, 2018, our exposure to Hyundai Merchant Marine increased toW1,818.6 billion fromW1,095.5 billion as of December 31, 2017, primarily due to our purchase of perpetual bonds issued by Hyundai Merchant Marine in October 2018. As of December 31, 2018, our exposure to Daehan Shipbuilding increased toW986.0 billion fromW756.9 billion as of December 31, 2017, primarily due to an increase in guarantees. As of December 31, 2018, our exposure to Hanjin Shipping decreased toW60.1 billion fromW363.1 billion as of December 31, 2017, primarily due to the write-offs of some of our outstanding loans. As of December 31, 2018, our exposure to STX Heavy Industries decreased toW138.4 billion fromW269.2 billion as of December 31, 2017, primarily due to a decrease in guarantees.
As of December 31, 2018, we established provisions ofW933.7 billion for our exposure to DSME,W872.8 billion for STX Offshore & Shipbuilding,W502.2 billion for Dongbu Steel,W296.8 billion for Hanjin Heavy Industries and Construction,W107.5 billion for Hyundai Merchant Marine,W513.4 billion for Daehan Shipbuilding,W60.1 billion for Hanjin Shipping andW95.4 billion for STX Heavy Industries.
Companies in the STX Group, a large Korean conglomerate primarily engaged in shipbuilding and trading, have faced financial difficulties for the past several years due to prolonged slowdowns in the Korean construction, shipbuilding and shipping industries. STX Pan Ocean had been in court receivership since June 2013 and was sold to Harim Group in June 2015. STX Construction has been in court receivership since April 2013. STX Offshore & Shipbuilding, which had filed for court receivership in May 2016 and executeddebt-to-equity swaps with their creditors (including us) in December 2016 under a rehabilitation plan through which we increased our equity interest to 43.9% and became its largest shareholder, exited court receivership in July 2017. In August 2016, STX Heavy Industries filed for court receivership, and in January 2017, the Seoul Central District Court approved its rehabilitation plan, which includeddebt-to-equity swaps. Subsequently, in November 2018, STX Heavy Industries filed a revised rehabilitation plan, which included liquidation of revolving facilities using funds obtained through disposal of assets pledged as collateral, which was passed by a vote of the shareholders and creditors, including us, and in February 2019, STX Heavy Industries exited court receivership. In December 2017, the creditors of STX Engine, including us, and UAMCO Ltd., a private bad asset clearing house in Korea, signed a stock purchase agreement in which the creditors agreed to sell off an 87% stake in STX Engine forW185.2 billion. In April 2018, the creditors of STX Corporation, including us, and AFC Korea, a Chinese private equity fund, signed a stock purchase agreement in which the creditors agreed to sell an 86.3% stake in STX Corporation forW68.5 billion.
Companies in the Dongbu Group, a large Korean conglomerate providing industrial, chemical, shipping, insurance and financial products and services, have also been facing financial difficulties for the past several years due to the prolonged slowdown in the Korean construction industry and in the Korean economy in general. Certain troubled companies in the Dongbu Group are in voluntaryout-of-court debt restructuring programs with their creditors. Dongbu Steel entered into a voluntary workout agreement with its creditors, including us, in October 2015, which is scheduled to expire in 2020. In April 2019, a consortium formed by KG Group and Cactus Private Equity was selected as the preferred bidder for the sale of Dongbu Steel. We are the main creditor bank of STX Group and Dongbu Group.
In May 2016, Hanjin Shipping, Korea’s largest container operator, submitted itself to joint management with us, as its largest creditor, and other creditors in an effort to revive itself from financial difficulties. In August 2016, we and the other creditors rejected Hanjin Shipping’s last funding plan, and Hanjin Shipping entered into court receivership in September 2016 and was declared bankrupt in February 2017.
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