diff --git a/crates/export/src/flow.rs b/crates/export/src/flow.rs
index 49ef73e38d..4349dd558e 100644
--- a/crates/export/src/flow.rs
+++ b/crates/export/src/flow.rs
@@ -140,7 +140,25 @@ pub(crate) fn list_item(text: &str) -> bool {
 /// paragraph spacing gives no other sign that a paragraph ends there, so such a line is left
 /// apart from the next rather than joined to it wrongly.
 fn ends_sentence(text: &str) -> bool {
-    text.trim_end().trim_end_matches(['"', '\'', '”', '’', '“', '»', ')', ']']).ends_with(['.', '!', '?', ':', ';', '…'])
+    text.trim_end()
+        .trim_end_matches(['"', '\'', '”', '’', '“', '»', ')', ']', '」', '』'])
+        .ends_with(['.', '!', '?', ':', ';', '…', '。', '！', '？'])
+}
+
+/// Whether `c` is of the writing that puts no space between words: Chinese and Japanese
+/// characters, their punctuation and fullwidth forms. A line that wraps between two of them
+/// joins without a word space.
+fn unspaced(c: char) -> bool {
+    matches!(
+        c,
+        '\u{3000}'..='\u{30FF}' // CJK punctuation, Hiragana, Katakana
+            | '\u{31F0}'..='\u{31FF}' // Katakana extension
+            | '\u{3400}'..='\u{4DBF}' // CJK extension A
+            | '\u{4E00}'..='\u{9FFF}' // CJK unified ideographs
+            | '\u{F900}'..='\u{FAFF}' // CJK compatibility ideographs
+            | '\u{FF01}'..='\u{FF9F}' // fullwidth forms, halfwidth Katakana
+            | '\u{20000}'..='\u{3FFFF}' // CJK extension B onwards
+    )
 }
 
 /// `paras` (a page's paragraphs, in any order) top to bottom, with each paragraph that wraps onto
@@ -169,10 +187,15 @@ pub(crate) fn join_wrapped<'a>(mut paras: Vec<Vec<Run<'a>>>, level: impl Fn(&[Ru
         match out.last_mut() {
             Some((prev, 0)) if lvl == 0 && wraps_into(prev, &para, [left, right]) => {
                 // The line break was a word space, unless the line ends in a hyphen; the hyphen
-                // stays, as it may belong to the word ("well-known").
+                // stays, as it may belong to the word ("well-known"). Chinese and Japanese text
+                // wraps between characters, with no space.
+                let unspaced_break = |end: &str| {
+                    end.chars().next_back().is_some_and(unspaced) && para.first().and_then(|r| r.text.chars().next()).is_some_and(unspaced)
+                };
                 if let Some(end) = prev.last_mut()
                     && !end.text.ends_with(char::is_whitespace)
                     && !end.text.ends_with('-')
+                    && !unspaced_break(&end.text)
                 {
                     end.text.push(' ');
                 }
diff --git a/crates/export/src/tests.rs b/crates/export/src/tests.rs
index dc99894d1b..5af44d3c65 100644
--- a/crates/export/src/tests.rs
+++ b/crates/export/src/tests.rs
@@ -890,6 +890,9 @@ named in the schedule, <em>Blue Finch Studio</em>, who agree as follows to rent
     );
     let r = rtf(std::slice::from_ref(&p));
     assert_eq!(r.matches("{\\pard").count(), 2, "{r}");
+    let md = markdown(std::slice::from_ref(&p));
+    assert_eq!(md.trim().split("\n\n").count(), 2, "{md}");
+    assert!(md.contains("of 4 Quay Street, and the tenant named in the schedule, "), "{md}");
     // On a slide the last of the paragraphs set largest is the title; the sentence is one paragraph.
     let s = part(&pptx(std::slice::from_ref(&p), "Lease"), "ppt/slides/slide1.xml");
     let slide: Vec<String> =
@@ -924,10 +927,21 @@ fn a_paragraph_breaks_where_its_line_does_not_run_on() {
     let second = |t: &str| line(t, 72.0, 240.0, 686.0);
     assert_eq!(word_texts(vec![first(full), second(next)]), [format!("{full} {next}")]);
     assert_eq!(word_texts(vec![first("Изпълнителят поддържа сървърите и мрежата на"), second("възложителя в работно състояние")]).len(), 1);
+    // Chinese and Japanese wrap between characters: their lines join without a space. Korean
+    // spaces its words, so its lines join with one.
+    let zh = ("本合同自双方签字之日起生效，有效期", "为一年，期满前一个月双方协商续签事宜");
+    assert_eq!(word_texts(vec![first(zh.0), second(zh.1)]), [format!("{}{}", zh.0, zh.1)]);
+    assert_eq!(
+        word_texts(vec![first("この契約は双方が署名した日から"), second("一年間有効とする")]),
+        ["この契約は双方が署名した日から一年間有効とする"]
+    );
+    assert_eq!(word_texts(vec![first("임차인은 방과 계단을 깨끗하게"), second("유지합니다")]), ["임차인은 방과 계단을 깨끗하게 유지합니다"]);
     let heading = |b: Block| Block { bold: true, ..b };
     for (why, blocks) in [
         ("a sentence ends", vec![first(&format!("{full}.")), second(next)]),
         ("a sentence ends in quotes", vec![first("Страните се договориха „за срок от една година.“"), second(next)]),
+        ("a Chinese sentence ends", vec![first("本合同自双方签字之日起生效。"), second(zh.1)]),
+        ("a Japanese sentence ends in quotes", vec![first("「この契約は一年間有効ですか？」"), second("双方が署名した日から")]),
         ("the line ends short", vec![line(next, 72.0, 240.0, 700.0), line(full, 72.0, 540.0, 686.0)]),
         ("paragraph space", vec![first(full), line(next, 72.0, 240.0, 676.0)]),
         ("an indent", vec![first(full), line(next, 90.0, 258.0, 686.0)]),