as well as favorable sales of metal substrates, the latter of which was achieved by capturing demand in developing countries.
System Solutions Segment
External revenue from the system solutions segment increased by ¥12,068 million, or 7%, in the fiscal year ended March 31, 2018 as compared to the prior year. This increase was primarily due to the promotion of the development of solutions for customer enterprises that enable them to make use of AI, machine learning and IoT, and thereby enhance the sophistication of their operations in their production and logistics workplaces.
Segment profit was ¥23,292 million, an increase of ¥1,179 million as compared to segment profit of ¥22,113 million in the prior year. This increase was primarily due to the promotion of the development of solutions for customer enterprises that enable them to make use of AI, machine learning and IoT, and thereby enhance the sophistication of their operations in their production and logistics workplaces.
Financial Condition
Our total assets as of March 31, 2018 were ¥7,756,134 million, an increase of ¥300,981 million, or 4%, as compared to as of March 31, 2017. This increase was primarily due to a rise in trade and other receivables of ¥8,743 million, a rise in the inventories of ¥166,659 million and a rise in othernon-current financial assets of ¥38,753 million.
Our total liabilities as of March 31, 2018 were ¥4,231,238 million, an increase of ¥63,392 million, or 2%, as compared to as of March 31, 2017. This increase was primarily due to a decrease in interest-bearing liabilities of ¥57,172 million, from ¥2,214,928 million as of March 31, 2017 to ¥2,157,755 million as of March 31, 2018, a rise in trade and other payable of ¥127,903 million.
Our total equity attributable to owners of NSSMC as of March 31, 2018 was ¥3,136,991 million, an increase of ¥205,757 million, or 7%, as compared to as of March 31, 2017. This increase was primarily due to profit of ¥180,832 million and comprehensive income of ¥91,317 million for the fiscal year ended March 31, 2018, which offset a decrease in dividends of ¥66,293 million.
Reconciliation to Japanese GAAP
Our consolidated financial statements are prepared in accordance with (i) the basis of preparation set forth in Note 2 to our consolidated financial statements included elsewhere in this prospectus and (ii) the significant accounting policies as summarized in Note 3 to our consolidated financial statements included elsewhere in this prospectus. These policies differ in certain respects from Japanese GAAP. Pursuant to the requirements of the FIEA, we have prepared and reported our annual financial results and quarterly financial statements under Japanese GAAP and will continue to do so through the three months ended December 31, 2018. Please refer to Note 36 to our audited consolidated financial statements included elsewhere in this prospectus for the major reconciling items between IFRS and Japanese GAAP.
We have attached, as Appendix E to this prospectus, unaudited consolidated financial information prepared under Japanese GAAP for the three months ended June 30, 2018 that we announced on August 2, 2018. Such information shows a decrease in profit before income taxes as compared with the corresponding period from the previous year. This decrease is primarily due to a difference in inventory devaluation despite our efforts to improve costs and secure appropriate sales prices for continuous supply, including adjusting steel product prices in light of surges in prices of auxiliary materials such as scrap and alloy, other material procurement costs and distribution costs.
We caution you, however, that because (i) these results are only for one quarter and may not be representative of financial results for the full year and (ii) there are differences between IFRS and Japanese GAAP, the information in Appendix E is of limited use in evaluating our results under IFRS, and therefore you should not place undue importance on them.
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