* Wienerberger leads STOXX 600 losers after profit warning

* Andy Burnham appoints John Healey as finance minister

* Boliden falls after warning on higher costs

(Updates prices and details throughout, adds analyst comment)

By Tharuniyaa Lakshmi and Purvi Agarwal

July 21 (Reuters) - European shares edged higher on Tuesday

after kicking off the week on the back foot, as reports of

U.S.-Iran mediation efforts pushed oil prices lower, while

investors assessed a fresh batch of corporate earnings.

Oil prices eased from one-month highs after reports of

diplomatic efforts between the United States and Iran. However,

concerns over energy supply disruption lingered after Yemen's

Iran-aligned Houthis announced a blockade of Saudi Arabia on

Monday.

The pan-European STOXX 600 index rose 0.1% to

640.61 points by 0831 GMT.

Technology stocks rose 0.9%, the most on the index,

led by ASMI and ASML, which gained 2.1% and

2.8%, respectively.

Earnings from major technology companies such as Alphabet

in the U.S. will be on watch this week for clues on

the sustainability of AI-related demand and whether their lofty

valuations can be justified.

"We have seen these ebbs and flows in sentiment... that

highlights the sort of the nervousness that there is surrounding

tech, particularly the AI and chip trade," said Fiona Cincotta,

senior market analyst at City Index.

"But if we do see another solid season, that could actually

be a catalyst for the next leg higher in tech stocks."

Miners climbed 0.6%, tracking an uptick in copper and

gold prices. Swedish miner Boliden, down 6.9%, limited

gains after a weaker-than-expected quarterly adjusted operating

profit.

On the flip side, media and personal and household

goods sectors were the laggards, down 1.1% and 0.7%,

respectively.

Wienerberger shares fell 6.5% to their lowest

since October 2022, after the building materials maker issued a

full-year profit warning, citing deterioration in new-build

activity.

Cincotta said uncertainty stemming from escalating U.S.-Iran

tensions could weigh on corporate outlook.

Swiss bank Julius Baer dipped 4.2% despite reporting

stronger-than-expected first-half net new money inflows, while

lift maker Schindler dropped 5.1% after its quarterly

sales missed market expectations.

Novartis shares gained 2.2% after the drugmaker

beat second-quarter core operating profit estimates.

This week, focus will also be on commentary from European

Central Bank policymakers at their monetary policy meeting where

they are expected to hold interest rates steady.

Market participants are pricing in at least one

25-basis-point hike by end-2026, according to LSEG-compiled

data.

In Britain, new Prime Minister Andy Burnham appointed former

defence secretary John Healey as finance minister, just weeks

after he resigned from the previous government with a stinging

rebuke of how the Treasury had fallen short on defence spending.

(Reporting by Tharuniyaa Lakshmi and Purvi Agarwal in

Bengaluru; Editing by Nivedita Bhattacharjee and Mrigank

Dhaniwala)