シンガポール外務省は2019年５月１日、リー・シェンロン首相が即位された天皇陛下にしたためたお祝いの書簡を発表した。
1 May 2019
Your Majesty
On behalf of the Government of Singapore, I extend my warmest congratulations on Your Majesty’s accession to the throne today.
Relations between Singapore and Japan are excellent, underpinned by many common interests, frequent high-level exchanges, robust economic links, and close people-to-people ties. Singapore appreciates the support of Their Majesties the Emperor Emeritus and Empress Emerita for the strong friendship between Singapore and Japan over the years, including through their historic State Visit to Singapore in 2006 marking the 40th anniversary of our diplomatic relations.
As we celebrate the auspicious dawn of your reign, I am confident that the relations between our two countries will reach even greater heights. May the Japanese people achieve their aspirations of peace and unity in the new Reiwa era, as its name symbolises.
I wish you good health and every success, and look forward to meeting you.
Yours sincerely
Lee Hsien Loong
His Majesty the Emperor
Japan